Table Of Contents
Release Notes for Cisco 2600 Series for
Cisco IOS Release 11.3 TDetermining Your Software Release
New Features in Cisco IOS Release 11.3(11)T
New Features in Cisco IOS Release 11.3(10)T
New Features in Cisco IOS Release 11.3(9)T
New Features in Cisco IOS Release 11.3(8)T
New Features in Cisco IOS Release 11.3(7)T
New Features in Cisco IOS Release 11.3(6)T
New Features in Cisco IOS Release 11.3(5)T
New Features in Cisco IOS Release 11.3(4)T
IP Type of Service and Precedence for GRE Tunnels
New Features in Cisco IOS Release 11.3(3)T
Named Method Lists for AAA Authorization and Accounting
Automated Double Authentication
Certificate Authority Interoperability
Internet Key Exchange Security Protocol
Microsoft Challenge Handshake Authentication Protocol Support
Microsoft Point-to-Point Compression
National ISDN Switch Types for BRI and PRI
Additional Vendor-Proprietary RADIUS Attributes
New Features in Cisco IOS Release 11.3(2)XA1
Forwarding of Locally Sourced AppleTalk Packets
Missing Source-Route Bridging Commands
New TACACS+ Attribute-Value Pair
40-bit Encryption Images are Unavailable in Release 11.3(1)
Cisco IOS Software Document Set
Release 11.3 Documentation Set
Software Configuration Tips on the Cisco TAC Home Page
Release Notes for Cisco 2600 Series for
Cisco IOS Release 11.3 T
August 2,1999
These release notes for Cisco 2600 series support Cisco IOS Release 11.3 T, up to and including Release 11.3(11)T. These release notes are updated as needed to accommodated to describe new features, memory requirements, hardware support, software platform deferrals, and changes to the microcode or modem code and related documents.
For a list of the software caveats that apply to Release 11.3 T, refer to Caveats for Cisco IOS Release 11.3 T document that accompanies these release notes. This caveats document is updated for every maintenance release and is located on Cisco Connection Online (CCO) and the Documentation CD-ROM. For more information, refer to the "Caveats" section of this document.
Use these release notes in conjunction with the Release Notes for Cisco IOS Release 11.3 located on Cisco Connection Online (CCO) and the Documentation CD-ROM. Because Release 11.3 T is based on Release 11.3, all features and caveats in Release 11.3 are also in Release 11.3 T.
Contents
These release notes discuss the following topics:
Introduction
This section provides information about the Cisco 2600 series routers and Early Deployment Releases (ED) for the Cisco 2600 series routers.
Cisco 2600 Series Routers
Cisco Systems extends enterprise-class versatility, integration, and power to branch offices with the Cisco 2600 series modular access router family. The Cisco 2600 series routers are cost-effective, modular access routers designed to enable customers to easily adopt future technologies and scale to accommodate network expansion, thereby protecting the customer's investment. The Cisco 2600 series shares modular interfaces with the Cisco 1600, 1700, and 3600 series, providing a cost-effective solution to meet today's branch office needs for applications such as:
•
Secure Internet/intranet access (with Firewall Options
•
•
•
•
The Cisco 2600 series modular architecture provides the versatility needed to adapt to changes in network technology as new services and applications become available. Driven by a powerful RISC processor, the Cisco 2600 series supports the advanced Quality of Service (QoS), security, and network integration features required in today's evolving enterprise networks.
Early Deployment Releases
This release notes is based on the Cisco 2600 for Cisco IOS Release 11.310)T. Release 11.3 T is an Early Deployment (ED) release, delivering fixes to software caveats and support for new Cisco hardware. The following table briefly describes some of the ED releases now and soon to be available for the Cisco 2600 series.
System Requirements
This section describes the system requirements for Release 11.3(11)T and includes the following sections:
•
Memory Requirements
describes the memory requirements of the Cisco IOS feature sets for the Cisco 2600 series for Release 11.3(11)T. All "Plus" feature sets include voice network support.
Hardware Supported
Cisco IOS Release 11.3(11)T supports the Cisco 2600 series routers:
•
•
•
•
Note
lists the interfaces supported by the Cisco 2600 series.
Table 3 Supported Interfaces on the Cisco 2600 Series
1- or 2-port Ethernet (10BaseT)
Cisco 2610, Cisco 2611, Cisco 2612
1-port Token Ring (RJ-45)
Cisco 2612, Cisco 2613
4-port Ethernet
All Cisco 2600 series platforms
1-port Ethernet
All Cisco 2600 series platforms
1-port ATM-25 RJ-45 interface
All Cisco 2600 series platforms
16- or 32-port Asynchronous
(2)
All Cisco 2600 series platforms
4- or 8-port Asynchronous/ Synchronous Serial low speed (128 kbps max)
(2)
All Cisco 2600 series platforms
1- or 2-port Channelized T1/ISDN PRI
(4)
All Cisco 2600 series platforms
1- or 2-port Channelized T1/ISDN PRI with CSU
(4)
All Cisco 2600 series platforms
1- or 2-port Channelized E1/ISDN PRI balanced
(4)
All Cisco 2600 series platforms
1- or 2-port Channelized E1/ISDN PRI unbalanced
(4)
All Cisco 2600 series platforms
4-or 8-port ISDN BRI S/T interface
(4)
All Cisco 2600 series platforms
4- or 8-port ISDN BRI U (NT1) interface
(4)
All Cisco 2600 series platforms
8 or 16 Analog Modems
(4)
All Cisco 2600 series platforms
1 or 2 Voice/Fax Interface Card Slots
(2)
All Cisco 2600 series platforms
1-port ISDN BRI S/T interface (requires external NT1)
All Cisco 2600 series platforms
1-port BRI U
All Cisco 2600 series platforms
1-port 56/64-kbps DSU/CSU
All Cisco 2600 series platforms
1- or 2-port T1/Fractional T1 with DSU/CSU
All Cisco 2600 series platforms
1-port High-Speed Serial (up to 2.048 Mbps)
All Cisco 2600 series platforms
2-port Dual High-speed Serial (up to 2.048 Mbps; Asynchronous/ Synchronous support)
All Cisco 2600 series platforms
2-port Asynchronous/ Synchronous (up to 128 kbps)
All Cisco 2600 series platforms
2-port FXS Voice/Fax interface card for Voice/Fax network module3
All Cisco 2600 series platforms with Voice/Fax network module
2-port FXO Voice/Fax interface card for Voice/Fax network module3
All Cisco 2600 series platforms with Voice/Fax network module
2-port E&M Voice/Fax interface card for Voice/Fax network module 3
All Cisco 2600 series platforms with Voice/Fax network module
Data Compression AIM (up to 8.192 Mbps)
(6)
1 The Voice/Fax and ATM-25 network modules require Cisco IOS Plus feature sets.
2 This column indicates the release in which the interface was first supported. For example, (5) means an interface was introduced in Release 11.3(5)T, except in the event of a (2), in which case the feature was introduced in Release 11.3(2)XA1. If a cell in this column is empty, the interface was included in the initial base release.
3 This interface card requires the NM-1V or NM-2V network module.
Determining Your Software Release
To determine the version of Cisco IOS software currently running on the Cisco 2600 series router, log into the router and use the show version EXEC command. The following is sample output from the show version command. The version number is indicated on the second line as shown below:
Cisco Internetwork Operating System SoftwareIOS (tm) 2600 Software (C2600-JS-L), Version 11.3(11)T, RELEASE SOFTWAREAdditional command output lines include more information, such as processor revision numbers, memory amounts, hardware IDs, and partition information.
Upgrading to a New Release
For generic information on upgrading to a new software release, refer to the Cisco IOS Software Release Upgrade Paths and Packaging Simplification product bulletin located on CCO at:
Service & Support: Product Bulletins. Scroll to Software. Under Cisco IOS 11.3, click Cisco IOS Software Release 11.3 Upgrade Paths (#703: 12/97).
Other Firmware Code
The latest version of analog modem firmware for the Cisco 2600 series allows support of the internal analog modems in a wide range of countries. Firmware version 1.0.1 extends support internationally starting with Release 11.3(5)T and later releases.
To access Cisco 2600 firmware documentation on CCO, follow this path:
Service & Support: Documentation Home Page: Access Servers and Access Routers: Modular Access Routers: Cisco 2600 Series Routers: Analog Modem Firmware
To access Cisco 2600 firmware documentation on the Documentation CD-ROM, follow this path:
Cisco Product Documentation: Access Servers and Access Routers: Modular Access Routers: Cisco 2600 Series Routers: Analog Modem Firmware
Feature Set Tables
Cisco IOS software is packaged in feature sets (also called software images) depending on the platform. Each feature set contains a specific set of Cisco IOS features. The following section lists the feature set matrix and the features supported by each feature set.
The feature set matrix shows the feature set organization and lists which feature sets are available on the Cisco 2600 series for Release 11.3 T. lists the Cisco IOS software features available for the Cisco 2600 series in Cisco IOS Release 11.3 T.
Release 11.3(11)T supports the same feature sets as Release 11.3(7), but it might also have new features, or new features not supported by the Cisco 2600 series. lists the feature set name, the feature set matrix term, the software image name, and the supported platforms.
Table 4 Feature Sets Supported by the Cisco 2600 Series
IP
Basic1
c2600-i-mz
All Cisco 2600 series platforms
IP Plus
Basic, Plus2
c2600-is-mz
All Cisco 2600 series platforms
IP Plus 40
Plus, Plus 403
c2600-is40-mz
All Cisco 2600 series platforms
IP Plus 56
Plus, Plus 564
c2600-is56-mz
All Cisco 2600 series platforms
IP Plus IPsec 56
Plus, Plus IPsec 565
c2600-is56i-mz
All Cisco 2600 series platforms
IP/IPX/AppleTalk/DEC
Basic
c2600-d-mz
All Cisco 2600 series platforms
IP/IPX/AppleTalk/DEC Plus
Basic, Plus
c2600-ds-mz
All Cisco 2600 series platforms
Enterprise Plus
Plus
c2600-js-mz
All Cisco 2600 series platforms
Enterprise Plus IPsec 56
Plus, Plus IPsec 56
c2600-j56i-mz
All Cisco 2600 series platforms
Enterprise/APPN Plus
Plus
c2600-ajs-mz
All Cisco 2600 series platforms
Enterprise/APPN Plus IPsec 56
Plus
c2600-asj56i-mz
All Cisco 2600 series platforms
Remote Access Server
Basic
c2600-c-mz
All Cisco 2600 series platforms
1 This feature is offered in the Basic feature set.
2 This feature is offered in the Plus feature set
3 This feature is offered in the encryption feature sets which consist of 40-bit (Plus 40) data encryption feature sets.
4 This feature is offered in the encryption feature sets which consist of 56-bit (Plus 56) data encryption feature sets.
5 This feature is offered in the encryption feature sets which consist of IPsec 56-bit (Plus IPsec 56) data encryption feature sets.
CautionCisco IOS images with strong encryption (including, but not limited to, 56-bit data encryption feature sets) are subject to U.S. government export controls, and have a limited distribution. Images to be installed outside the U.S. require an export license. Customer orders might be denied or subject to delay due to U.S. government regulations. Contact your sales representative or distributor for more information, or send e-mail to export@cisco.com.
lists the features and feature sets supported by the Cisco IOS Release 11.3 T for the Cisco 2600. This table uses the following conventions to identify features:
•
•
•
Note
Table 5 Feature List by Feature Set for the Cisco 2600 Series for Cisco IOS Release 11.3(11)T
Plus
Plus
40
Plus
56
Plus
IPSEC 56
IPX/
AT/
DEC
IPX/
AT/
DEC
Plus
prise
Plus
prise
Plus
IPSEC
56
prise/
APPN
Plus
prise/
APPN
Plus
IPSEC
56
Access
ServerAPPN High-Performance Routing
No
No
No
No
No
No
No
No
No
Yes
No
No
APPN MIB Enhancements
No
No
No
No
No
No
No
No
No
Yes
No
No
APPN Modularity Enhancements
No
No
No
No
No
No
No
No
No
Yes
No
No
APPN over Ethernet LAN Emulation
No
No
No
No
No
No
No
No
No
Yes
No
No
APPN Scalability Enhancements
No
No
No
No
No
No
No
No
No
Yes
No
No
BAN for SNA Frame Relay support
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
Bisync Enhancements, include:
•
•
•
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
Caching and filtering
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
Cisco MultiPath Channel (CMPC)
No
No
No
No
No
No
No
No
No
No
No
No
DLSw+ Enhancements, include:
•
•
•
•
•
•
•
•
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
Downstream PU concentration (DSPU)
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Frame Relay SNA support (RFC 1490)
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
FRAS Enhancements, include:
•
•
•
•
•
•
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
IBU Modularity Enhancements
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
Native Client Interface Architecture (NCIA) Server
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
NetView Native Service Point
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
Polled asynch (ADT, ADPLEX)
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
QLLC
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
Response Time Reporter (RTR)
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
RFC 1795
No
No
No
No
No
No
No
No
No
No
No
No
RSRB
No
No
No
No
No
No
No
No
No
No
No
No
SDLC integration
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
SDLC transport (STUN)
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
SDLC-to-LAN conversion (SDLLC)
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
SNA and NetBIOS WAN optimization via local acknowledgment
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
SRB/RSRB
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
SRT
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
TG/COS
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
TN3270
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
TN3270 LU Nailing
No
No
No
No
No
No
No
No
No
No
No
No
TN3270 Server Enhancements
No
No
No
No
No
No
No
No
No
No
No
No
Token Ring LANE
No
No
No
No
No
No
No
No
No
No
No
No
Tunneling of Asynchronous Security Protocols
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
DRP Server Agent
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
DRP Server Agent Enhancements
(2)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
BGP
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
BGP4
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Easy IP (Phase 1)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
EGP
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Enhanced IGRP
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Enhanced IGRP Optimizations
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
ES-IS
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
Hot Standby Router Protocol (HSRP) over ISL in Virtual LAN Configurations
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
IP Enhanced IGRP Route Authentication
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
IP Type of Service and Precedence for GRE Tunnels
(4)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
IS-IS
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
Multiple group Hot Standby Router Protocol (M-HSRP)
_
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Named IP Access Control List
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Network Address Translation (NAT)
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
NHRP
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
On Demand Routing (ODR)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
OSPF
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
OSPF Not-So-Stubby-Areas (NSSA)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
OSPF On Demand Circuit (RFC 1793)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
PIM
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Policy-based routing
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
RIP
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
RIP Version 2
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
TCP Enhancements, include:
•
•
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Apollo Domain
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
AppleTalk 1 and 21
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
AppleTalk Access List Enhancements
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
No
Banyan VINES
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
Concurrent routing and bridging
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
DECnet Accounting
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
No
DECnet IV
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
No
DECnet V
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
GRE
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Integrated routing and bridging (IRB)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
IP
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
IPX Named Access Lists
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
IPX SAP-after-RIP
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
LAN extension host
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Multiring
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
NLSP Enhancements
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
NLSP Multicast Support
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
No
Novell IPX
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
OSI
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
Source-route bridging
No
No
No
No
No
No
No
No
No
No
No
No
Transparent and translational bridging
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Transparent bridging
No
No
No
No
No
No
No
No
No
No
No
No
VLANs (ISL and IEEE 802.10) Cisco 4500 only
No
No
No
No
No
No
No
No
No
No
No
No
XNS
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
AutoInstall
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Automatic modem configuration
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Cisco Call History MIB Command-Line Interface
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Cisco IOS Internationalization
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Entity MIB (Phase I)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
HTTP Server
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
RMON events and alarms
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
RMON full (Cisco 2500 only)
No
No
No
No
No
No
No
No
No
No
No
No
SNMP
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
SNMP Inform Requests
(1)
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
SNMPv2C
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Telnet
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Virtual Profiles
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
VPDN MIB and Syslog Facility
(2)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Generic traffic shaping
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
IP Multicast Load Splitting across Equal-Cost Paths
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
No
Yes
IP Multicast over ATM Point-to-Multipoint Virtual Circuits
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
IP Multicast over Token Ring LANs
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
PIM Version 2
(2)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Random Early Detection (RED)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Resource Reservation Protocol (RSVP)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
RTP Header Compression
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Stub IP Multicast Routing
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Voice over IP
(2)
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
AURP
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
IPX RIP
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
NLSP
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
No
RTMP
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
SMRP
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
No
SRTP
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
LAT
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
PPP7
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Rlogin
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Telnet
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
TN3270
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
X.25
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
ARAP 1.0/2.0
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Asynchronous master interfaces
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
ATCP
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
CPPP
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
CSLIP
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
DHCP
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
IP pooling
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
IPX and ARAP on virtual asynch interfaces
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
IPXCP
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
MacIP
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
NASI
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
NetBEUI over PPP
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
PPP
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
SLIP
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Access lists
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Access security
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Authenticating ACLs Featurette
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Automated Double Authentication
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Certificate Authority Interoperability
(3)
No
No
No
No
Yes
No
No
No
Yes
No
Yes
No
Encrypted Kerberized Telnet
No
No
No
No
No
No
No
No
Yes
No
Yes
No
Extended access lists
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
HTTP Security
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Internet Key Exchange Security Protocol
(3)
Yes
Yes
No
No
No
Yes
Yes
No
Yes
Yes
Yes
Yes
Kerberized login
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
Kerberos V client support
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
Lock and key
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
MAC security for hubs
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
MD5 routing authentication
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
MS-CHAP Support
(3)
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
Named Method Lists for AAA Authorization & Accounting
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Network layer encryption (export controlled 40-bit and 56-bit DES)
No
No
Yes
Yes
Yes
No
No
No
Yes
No
Yes
No
Per-User Configuration
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Reflexive Access Lists
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Router authentication
No
No
Yes
Yes
Yes
No
No
No
Yes
No
Yes
No
Subblock (Phase I)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
TACACS+
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
TCP Intercept
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
Vendor-Proprietary RADIUS Attributes
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
AppleTalk Routing over ISL and IEEE 802.10 in Virtual LANs
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
CLNS and DECnet Fast Switching over PPP
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
DECnet/VINES/XNS over ISL, includes:
•
•
•
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
Fast-Switched Policy Routing
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
IPX Routing over ISL Virtual LANs
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
VIP Distributed Switching Support for IP Encapsulated in ISL
No
No
No
No
No
No
No
No
No
No
No
No
LAT
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Rlogin
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Telnet
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
TN3270
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Virtual Templates for Protocol Translation
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
X.25 PAD
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Xremote
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
ATM MIB Enhancements
No
No
No
No
No
No
No
No
No
No
No
No
ATM PVC Management
(2)
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
Bandwidth-on-demand
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Custom and priority queuing
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Dial backup
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Dial-on-demand
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Header, link and payload compression
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
PAD Enhancements
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
PAD Subaddressing
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Snapshot routing
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Weighted fair queuing
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Always On/Dynamic ISDN
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
ATM LAN emulation: DECnet routing and Banyan VINES support
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
No
ATM LAN emulation: Hot Standby Router Protocol (HSRP) and Simple Server Redundancy Protocol (SSRP)
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
ATM LAN emulation: Rate queues for SVC per subinterface
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
ATM LAN emulation: UNI 3.1 signaling for ATM
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
Bandwidth Allocation Control Protocol (BACP)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Combinet Packet Protocol (CPP)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Dialer profiles
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Dialer Watch
(2)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Enhanced Local Management Interface (ELMI)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Frame Relay
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Frame Relay Enhancements
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Frame Relay MIB Extensions
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Frame Relay Router ForeSight
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Frame Relay SVC Support (DTE)
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
Frame Relay traffic shaping
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Half bridge/half router for CPP and PPP
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
HDLC
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
IPXWAN 2.0
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
ISDN
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
ISDN Advice of Charge
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
ISDN Caller ID Callback
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
ISDN Multiple Switch Type
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
ISDN NFAS
No
No
No
No
No
No
No
No
No
No
No
No
Layer 2 Forwarding—Fast Switching
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Leased-Line ISDN at 128 kbps
Yes
Yes
No
No
No
Yes
Yes
Yes
No
Yes
No
No
Microsoft Point-to-Point Compression
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
MS Callback
(2)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Multichassis Multilink PPP (MMP)
No
Yes
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
National ISDN Switch Types for BRI and PRI (NI2)
(3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
PPP
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
PPP over ATM
No
No
No
No
No
No
No
No
No
No
No
No
SMDS
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Stacking Home Gateway Featurette
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Switched 56
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Telnet Extensions for Dialout
No
No
No
No
No
No
No
No
No
No
No
Yes
Virtual Private Dial-up Network (VPDN)
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
X.25 on ISDN B-Channel
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
X.25 on ISDN D-Channel
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
X.25 Protocol Engine
Yes
Yes
No
No
No
Yes
Yes
Yes
No
Yes
No
Yes
X.25 Switching between PVCs and SVCs
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
X.25
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
X.28 Emulation
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
1 This column indicates the maintenance release in which the feature was introduced. For example, (5) means a feature was introduced in 11.3(5)T, except in the event of a (2), in which case the feature was introduced in Release 11.3(2)XA1. If a cell is empty in this column, the feature was included in the initial base release.
New and Changed Information
The following sections list the new features supported by the Cisco 2600 series in Cisco IOS Release 11.3 T.
For additional information about features listed in this section, connect to www.cisco.com and browse to the following:
Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS 11.3T New Features
To find feature information on the Documentation CD-ROM, follow this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS 11.3T New Features
New Features in Cisco IOS Release 11.3(11)T
There are no new features in the Cisco 2600 series routers for Cisco IOS Release 11.3(11)T.
New Features in Cisco IOS Release 11.3(10)T
There are no new features in the Cisco 2600 series routers for Cisco IOS Release 11.3(10)T.
New Features in Cisco IOS Release 11.3(9)T
There are no new features in the Cisco 2600 series routers for Cisco IOS Release 11.3(9)T.
New Features in Cisco IOS Release 11.3(8)T
There are no new features in the Cisco 2600 series routers for Cisco IOS Release 11.3(8)T.
New Features in Cisco IOS Release 11.3(7)T
There are no new features in the Cisco 2600 series routers for Cisco IOS Release 11.3(7)T.
New Features in Cisco IOS Release 11.3(6)T
There are no new features in the Cisco 2600 series routers for Cisco IOS Release 11.3(6)T.
New Features in Cisco IOS Release 11.3(5)T
There are no new features in the Cisco 2600 series routers for Cisco IOS Release 11.3(5)T.
New Features in Cisco IOS Release 11.3(4)T
The following software enhancement was introduced in Release 11.3(4)T and is available for the Cisco 2600 series routers.
IP Type of Service and Precedence for GRE Tunnels
Prior to the IP Type of Service and Precedence for GRE Tunnels feature, at generic route encapsulation-based tunnel endpoints, the Type of Service (TOS) bits (including precedence bits) were not copied to the tunnel or GRE IP header that encapsulates the inner packet. Instead, those bits were set to zero. This was not a problem unless the intermediate routers between two tunnel endpoints honored TOS or precedence bits, in which case those settings were ignored.
With the advent of virtual private network (VPN) and QoS applications, you should copy the TOS bits when the router encapsulates the packets using GRE. Thus, intermediate routers between tunnel endpoints can take advantage of the QoS features such as weighted fair queuing (WFQ) and weighted random early detection (WRED).
New Features in Cisco IOS Release 11.3(3)T
The following software enhancements were introduced in Release 11.3(3)T and are available for the Cisco 2600 series routers.
Named Method Lists for AAA Authorization and Accounting
In earlier Cisco IOS releases, only named authentication method lists were supported under Cisco's authentication, authorization, and accounting (AAA) network security services. With Cisco IOS Release 11.3(3)T, AAA has been extended to support both authorization and accounting named method lists. Named Method Lists for Authorization and Accounting function the same way as those for authentication: they allow you to define different methods for authorization and accounting and apply those methods a on a per-interface or per-line basis.
Always On/Dynamic ISDN
Always On/Dynamic ISDN (AO/DI) is an on-demand service that is designed to optimize the use of an existing Integrated Services Digital Network (ISDN) signaling channel (D channel) to transport X.25 traffic. The X.25 D channel call is placed from the subscriber to the packet data service provider. The use of PPP allows protocols to be encapsulated within the X.25 logical circuit carried by the D channel. The bearer channels (B channels) use the Multilink Protocol without the standard Q.922 and X.25 encapsulations, and invoke additional bandwidth as needed. Optionally, the Bandwidth Allocation Control Protocol (BACP) and the Bandwidth Allocation Protocol (BAP) can be used to negotiate bandwidth allocation as required.
Automated Double Authentication
The Automated Double Authentication feature enhances the existing double authentication feature. Previously, with the existing double authentication feature, a second level of user authentication is achieved when the user Telnets to the network access server or router and enters a username and password. Now, with automated double authentication, the user does not have to Telnet anywhere but instead responds to a dialog box that requests a username and password or PIN.
Certificate Authority Interoperability
Certification Authority (CA) Interoperability is provided in support of the IP Security (IPSec) standard. CA interoperability permits Cisco IOS devices and CAs to communicate so that your
Cisco IOS device can obtain and use digital certificates from the CA. Although IPSec can be implemented in your network without the use of a CA, using a CA provides manageability and scalability for IPSec.Internet Key Exchange Security Protocol
The Internet Key Exchange Security (IKE) Protocol is a key management protocol used in conjunction with the IPSec standard. IPSec is an IP security feature that provides robust authentication and encryption of IP packets. IPSec can be configured without IKE, but IKE enhances IPSec by providing additional features, flexibility, and ease of configuration for the IPSec standard. IKE is a hybrid protocol that implements the Oakley key exchange and Skeme key exchange inside the ISAKMP framework. (ISAKMP, Oakley, and Skeme are security standards implemented by IKE.)
Microsoft Challenge Handshake Authentication Protocol Support
Microsoft Challenge Handshake Authentication Protocol (MS-CHAP) is the Microsoft version of CHAP and is an extension to RFC 1994. Like the standard version of CHAP, MS-CHAP is used for PPP authentication; in this case, authentication occurs between a PC using Microsoft Windows NT or Microsoft Windows 95 and a Cisco router or access server acting as a network access server (NAS).
MS-CHAP differs from the standard CHAP as follows:
•
•
•
•
•
Depending on the security protocols you have implemented, PPP authentication using MS-CHAP can be used with or without authentication, authorization and accounting (AAA) security services. If you have enabled AAA, PPP authentication using MS-CHAP can be used in conjunction with both TACACS+ and RADIUS.
Microsoft Point-to-Point Compression
Microsoft Point-to-Point Compression (MPPC) is a scheme used to compress Point-to-Point Protocol (PPP) packets between Cisco and Microsoft client devices. The MPPC algorithm is designed to optimize bandwidth utilization in order to support multiple simultaneous connections. The MPPC algorithm uses a Lempel-Ziv (LZ) based algorithm with a continuous history buffer, called a dictionary.
Multiple ISDN Switch Types
The Multiple ISDN Switch Types feature allows for configuring more than one ISDN switch type per router. An ISDN switch type can be applied on a per interface basis, thus extending the existing global ISDN switch-type command to the interface level. This allows Basic Rate Interfaces (BRI) and Primary Rate Interfaces (PRI) to run simultaneously on platforms that support both interface types.
National ISDN Switch Types for BRI and PRI
National ISDN Switch Types for Basic Rate and Primary Rate Interfaces (NI2) introduce changes to ISDN switch types for Primary Rate Interfaces (PRIs) and Basic Rate Interfaces (BRIs) as follows:
•
•
•
•
•
•
Note
RIF Passthru in DLSw+
By default, DLSw+ terminates the RIF for Token Ring, terminates the LLC for all media types and forwards data only across a WAN with DLSw+ and TCP/IP headers. The RIF is a field in source-route bridged frames that indicates the SRB path the frame should take when traversing a Token Ring network. In the case of an explorer packet, the RIF is a field of the source-route bridged frame that indicates the SRB path that the SRB explorer has traversed so far. The RIF is limited to seven hop counts by the IBM standards. Because DLSw+ terminates the RIF at the virtual ring, the network's scalability increases because the hop count of the packet starts over, and the packet can traverse seven additional hops. Also, RIF termination simplifies network design because ring numbers no longer have to be unique throughout an entire enterprise. Some environments, however, do not function properly if the RIF is terminated. For that reason, DLSw+ now supports the RIF Passthru in DLSw+ feature, in which the entire source-route bridged path appears in the RIF.
Additional Vendor-Proprietary RADIUS Attributes
In Cisco IOS Release 11.3(3)T, Cisco IOS software introduces support for Additional Vendor-Proprietary RADIUS Attributes. Remote Authentication Dial-In User Server (RADIUS) is an access server authentication, authorization, and accounting protocol originally developed by Livingston, Inc. An Internet Engineering Task Force (IETF) draft standard for RADIUS specifies a method for communicating vendor-proprietary information between the network access server and the RADIUS.
VPDN MIB and Syslog Facility
The Virtual Private Dialup Network (VPDN) Management Information Base (MIB) feature is intended to support all the tables and objects defined in the Cisco VPDN Management MIB for VPDN user sessions. VPDN system-wide information is available. This includes active VPDN tunnels, active user sessions in active VPDN tunnels, and failure history information, per username.
The VPDN syslog facility provides generic logging output for VPDN information, such as Layer 2 Forwarding Protocol (L2F). The syslog messages are generated to inform authentication or authorization errors, resource issues, and timeout events.
New Features in Cisco IOS Release 11.3(2)XA1
Cisco IOS Release 11.3(2)XA1 is the first release for the Cisco 2600 series routers. This software release includes many new software features, which are briefly described in this section.
ATM PVC Management
The Enhanced ATM VC Configuration and Management feature set includes new and enhanced capabilities that allow you to create and manage ATM PVCs and SVCs with more ease and improved integrity. This feature set includes the following five subfeatures:
•
•
•
•
•
Dialer Watch
Dialer Watch is a backup feature that integrates dial backup with routing capabilities. Prior dial backup implementations used the following conditions to trigger backup:
•
•
•
Prior backup implementations might not have supplied optimum performance on some networks, such as those using Frame Relay multipoint subinterfaces or Frame Relay connections that do not support end-to-end PVC status. Dialer Watch provides reliable connectivity without relying solely on defining interesting traffic to trigger outgoing calls at the central router.
Dialer Watch uses the convergence times and characteristics of dynamic routing protocols. Integrating backup and routing features enables Dialer Watch to monitor every deleted route. By configuring a set of watched routes that define the primary interface, you are able to monitor and track the status of the primary interface as watched routes are added and deleted.
DRP Server Agent Enhancements
The Director Response Protocol (DRP) Server Agent enhancements are as follows:
•
•
MS Callback
The MS Callback feature provides client-server callback services for Microsoft Windows 95 and Microsoft Windows NT clients. MS Callback supports the Microsoft Callback Control Protocol (MSCB). MSCB is Microsoft's proprietary protocol that is used by Windows 95 and Windows NT clients. MS Callback supports negotiated PPP Link Control Protocol (LCP) extensions initiated and agreed upon by the Microsoft client. MS Callback is added to existing PPP Callback functionality. Therefore, if you configure your Cisco access server to perform PPP Callback using Cisco IOS Release 11.3(2)XA1 or later, MS Callback is automatically available.
MS Callback supports AAA security models using a local database or AAA server. MSCB uses LCP callback options with suboption type 6. The Cisco MS Callback feature supports clients with a user-specified callback number and server specified (preconfigured) callback number. MS Callback does not affect non-Microsoft machines that implement standard PPP LCP extensions as described in RFC 1570. In this scenario, MS Callback is transparent.
PIM Version 2
Protocol-Independent Multicast (PIM) Version 2 includes the following improvements over PIM Version 1:
•
•
•
•
•
•
•
PIM Version 1, together with the Auto-RP feature, can perform the same tasks as the PIM Version 2 BSR. However, Auto-RP is a standalone protocol, separate from PIM Version 1, and Cisco proprietary. PIM Version 2 is a standards track protocol in the Internet Engineering Task Force (IETF).
SNMP Inform Requests
The SNMP Inform Requests feature allows routers to send inform requests to SNMP managers. Routers can send notifications to SNMP managers when particular events occur. For example, an agent router might send a message to a manager when the agent router experiences an error condition.
SNMP notifications can be sent as traps or inform requests. Traps are unreliable because the receiver does not send any acknowledgment when it receives a trap. The sender cannot determine if the trap was received. However, an SNMP manager that receives an inform request acknowledges the message with an SNMP response PDU. If the manager does not receive an inform request, it does not send a response. If the sender never receives a response, the inform request can be sent again. Thus, informs are more likely to reach their intended destination.
Voice-over IP
Voice-over IP enables a Cisco 2600 series router to carry live voice traffic (for example, telephone calls and faxes) over an IP network.
This feature provides the following benefits:
•
•
•
•
Important Notes
The following important notes apply to Cisco IOS Release 11.3 T.
Enabling IPX Routing
The Token Ring interface is reset whenever IPX routing is enabled on that interface.
Forwarding of Locally Sourced AppleTalk Packets
The Cisco implementation of AppleTalk does not forward packets with local-source and destination network addresses. This behavior does not conform to the definition of AppleTalk in the Apple Computer publication Inside AppleTalk. However, this behavior is designed to prevent any possible corruption of the AppleTalk Address Resolution Protocol (AARP) table in any AppleTalk node that is performing MAC-address gleaning.
Removed Bridging Command
As of Release 11.3(2)XA1, the command bridge group multicast-source is no longer available. This command was removed to comply with the source-route-transparent (SRT) bridging implementation.
Missing Source-Route Bridging Commands
Due to a production problem, many source-route bridging commands were omitted from the printed version of the Cisco IOS Software Command Summary (78-4746-XX). For complete documentation of all source-route bridging commands, refer to the Bridging and IBM Networking Command Reference (78-4743-XX). You can also obtain the most current documentation on CCO and the Documentation CD-ROM.
New TACACS+ Attribute-Value Pair
A new authorization feature was added in Release 11.3(1) that allows for separate configuration and authorization of Multilink PPP. This can cause MLP authorization to fail in TACACS+ servers that do not include the relevant authorization permissions in the configuration. For TACACS+, the following attribute-value (AV) pair should be added for all users who are allowed to negotiate Multilink PPP:
service = ppp protocol = multilink {Configuring VPDN
For information about configuring VPDN, access the Cisco Documentation CD-ROM. Using a web browser, follow this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS 11.3 Configuration Guides, Command References: Dial Solutions Configuration Guide: Virtual Private Dialup Networks
To access the VPDN command reference, follow this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS 11.3 Configuration Guides, Command References: Dial Solutions Command Reference: Virtual Private Dialup Networks: Virtual Private Dialup Network Commands
40-bit Encryption Images are Unavailable in Release 11.3(1)
Cisco is conducting an internal review of the build and distribution processes associated with its 40-bit Cisco IOS cryptographic products. To provide seamless access to Cisco IOS 40-bit encryption capability, Cisco will provide access to the most current 40-bit encryption images, beginning with Cisco IOS Release 11.2 (12), 11.2(12)P, and 11.3(2). The following 40-bit encryption images will be indefinitely unavailable:
•
•
•
•
This review is not related to any new or previously unreported caveats. The information gathered in the review will be used to implement new automated development and order-processing applications.
Caveats
For a list of software caveats that apply to 11.3 T, refer to Caveats for Cisco IOS Release 11.3 T document that accompanies these release notes. This document lists severity 1 and 2 caveats for 11.3 T. Severity 1 caveats are the most serious caveats; severity 2 caveats are less serious. Caveats describe unexpected behavior or defects in Cisco IOS software releases. The caveats document is also located on CCO and the Documentation CD-ROM.
Because Release 11.3 T is based on Release 11.3 all caveats in Release 11.3 are also in Release 11.3 T.
If you have an account with CCO, you can use Bug Navigator II to find caveats of any severity for any release. Bug Navigator II is at http://www.cisco.com/support/bugtools, or from CCO, select Service & Support: Online Technical Support: Software Bug Toolkit II.
Related Documentation
The following sections describe the documentation available for the Cisco 2600 series. Typically, these documents consist of hardware installation guides, software installation guides, Cisco IOS configuration and command references, system error messages, and other documents, which are updates to Cisco IOS documentation. Documentation is available as printed manuals or electronic documents, except for feature modules, which are only available online.
The most up-to-date documentation can be found on the Web at Cisco Connection Online (CCO) and the Documentation CD-ROM. These electronic documents may contain updates and modifications made after the hardcopy documents were printed.
Use these release notes with the documents listed in the following sections:
•
Release-Specific Documents
The following documents are specific to Release 11.3 T. They are located on CCO and the Documentation CD-ROM:
•
To reach the cross-platform Release Notes for Cisco IOS Release 11.3 T on CCO, follow this path:
Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Product Specific Release Notes for Cisco IOS Release 11.3: Cross-Platform Release Notes for Cisco IOS Release 11.3
To reach the cross-platform Release Notes for Cisco IOS Release 11.3 on the Documentation CD-ROM, follow this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Product Specific Release Notes for Cisco IOS Release 11.3: Cross-Platform Release Notes for Cisco IOS Release 11.3
•
To reach these documents, refer to the Software Center at this path on CCO:
Service & Support: Technical Documents
•
The Caveats for Cisco IOS Release 11.3 T document contains caveats applicable to all platforms for all maintenance releases of Release 11.3 T.
To reach the caveat document on CCO, follow this path:
Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Product Specific Release Notes for Cisco IOS Release 11.3: Caveats for Cisco IOS Release 11.3 T
To reach the caveat document on the Documentation CD-ROM, follow this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Product Specific Release Notes for Cisco IOS Release 11.3: Caveats for Cisco IOS Release 11.3
Note
Feature Modules
Feature modules describe new features supported by Release 11.3 T and are an update to the Cisco IOS documentation set. They consist of a brief overview of the feature, benefits, configuration tasks, and a command reference. As updates, the feature modules are available online only. The feature module information is included in the next printing of the Cisco IOS documentation set.
To reach the feature modules on CCO, follow this path:
Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS 11.3T New Features
To reach the feature modules on the Documentation CD-ROM, follow this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS 11.3 T New Features
Platform-Specific Documents
The documents listed below are available for the Cisco 2600. These documents are also available online at Cisco Connection Online (CCO) and on the Documentation CD-ROM.
•
•
•
•
•
•
•
•
•
•
•
•
•
To access Cisco 2600 documentation on CCO, follow this path:
Service & Support: Documentation Home Page: Access Servers and Access Routers: Modular Access Routers: Cisco 2600 Series Routers
To reach Cisco 2600 documentation on the Documentation CD-ROM, follow this path:
Cisco Product Documentation: Access Servers and Access Routers: Modular Access Routers: Cisco 2600 Series Routers
Cisco IOS Software Document Set
The Cisco IOS software documentation set consists of the Cisco IOS configuration guides, Cisco IOS command references, and several other supporting documents. These documents are shipped with your order in electronic form on the Documentation CD-ROM, unless you specifically ordered the printed versions.
Documentation Modules
Each module in the Cisco IOS documentation set consists of two books: a configuration guide and a corresponding command reference. Chapters in a configuration guide describe protocols, configuration tasks, Cisco IOS software functionality, and comprehensive configuration examples. Chapters in a command reference provide complete command syntax information. Each configuration guide can be used in conjunction with its corresponding command reference.
On CCO and the Documentation CD-ROM, two master hot-linked documents provide information for the Cisco IOS software documentation set: configuration guides and command references.
To reach these documents on CCO, follow this path:
Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS Release 11.3 Configuration Guides, Command References
To reach these documents on the Documentation CD-ROM, follow this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS Release 11.3 Configuration Guides, Command References
Release 11.3 Documentation Set
describes the contents of the Cisco IOS Release 11.3 software documentation set. The document set is available in electronic form and also in printed form upon request.
Note
To reach the Cisco IOS documentation set on CCO, follow this path:
Service & Support: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS 11.3 Configuration Guides, Command References
To reach the Cisco IOS documentation set on the Documentation CD-ROM, follow this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 11.3: Cisco IOS 11.3 Configuration Guides, Command References
.
Service and Support
For service and support for a product purchased from a reseller, contact the reseller. Resellers offer a wide variety of Cisco service and support programs, which are described in the section "Service and Support" in the information packet shipped with your product.
Note
For service and support for a product purchased directly from Cisco, use CCO.
Software Configuration Tips on the Cisco TAC Home Page
The following URL contains links and helpful tips on configuring your Cisco products: http://www.cisco.com/kobayashi/serv_tips.shtml. This URL is subject to change without notice. If it changes, point your browser to CCO and click on this path:
Products & Technologies: Products: Technical Tips
Cisco Connection Online
Cisco Connection Online (CCO) is Cisco Systems' primary, real-time support channel. Maintenance customers and partners can self-register on CCO to obtain additional information and services.
Available 24 hours a day, 7 days a week, CCO provides a wealth of standard and value-added services to Cisco's customers and business partners. CCO services include product information, product documentation, software updates, release notes, technical tips, the Bug Navigator, configuration notes, brochures, descriptions of service offerings, and download access to public and authorized files.
CCO serves a wide variety of users through two interfaces that are updated and enhanced simultaneously: a character-based version and a multimedia version that resides on the World Wide Web (WWW). The character-based CCO supports Zmodem, Kermit, Xmodem, FTP, and Internet e-mail, and it is excellent for quick access to information over lower bandwidths. The WWW version of CCO provides richly formatted documents with photographs, figures, graphics, and video, as well as hyperlinks to related information.
You can access CCO in the following ways:
•
•
•
•
•
For a copy of CCO's Frequently Asked Questions (FAQ), contact cco-help@cisco.com. For additional information, contact cco-team@cisco.com.
Note
Documentation CD-ROM
Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM, a member of the Cisco Connection Family, is updated monthly. Therefore, it might be more current than printed documentation. To order additional copies of the Documentation CD-ROM, contact your local sales representative or call customer service. The CD-ROM package is available as a single package or as an annual subscription. You can also access Cisco documentation on the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com.
If you are reading Cisco product documentation on the World Wide Web, you can submit comments electronically. Click Feedback in the toolbar and select Documentation. After you complete the form, click Submit to send it to Cisco. We appreciate your comments.
78-5386-09
