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Cisco 1700 Series Modular Access Routers

Cisco IOS Software Release 12.3(2)XC

Table Of Contents

Product Bulletin No. 2305

New Features in Cisco IOS Software Release 12.3(2)XC

Detailed Information

New Hardware

New Software Features

Product Numbers

Download Information


Product Bulletin No. 2305


Cisco IOS Software Release 12.3(2)XC

This product bulletin describes the content and delivery information for Cisco IOS® Software Release 12.3(2)XC. It should be used in conjunction with the Cisco IOS Software Release 12.3T product bulletin. Cisco IOS Software Release 12.3(2)XC is a short-lived, early deployment release that will be supported in the fourth release of Cisco IOS Software Release 12.3T. It supports the Cisco 1700 Series routers (Cisco 1701, Cisco 1710, Cisco 1711, Cisco 1712, Cisco 1720, Cisco 1721, Cisco 1751, Cisco 1751-V, and Cisco 1760) and Cisco SOHO 90 Series (SOHO 91, SOHO 96, SOHO 97), Cisco 827-4V, Cisco 828 and 830 Series Routers (Cisco 831, Cisco 836, and Cisco 837).

The platform and features delivered with this early deployment release will be immediately incorporated into the fourth release of Cisco IOS Software Release 12.3T. The timeframe for the availability of the fourth release of the Cisco IOS Software Release 12.3T train is the second quarter of 2004 (target Cisco.com date is April/May 2004). Please note that this timeframe is subject to change.

Future early deployment releases will be provided for maintenance support until Cisco IOS Software Release 12.3(2)XC becomes available in the fourth release of Cisco IOS Software Release 12.3T.

In addition to the supported features described in this product bulletin, more information is available in the release notes for Cisco IOS Software Release 12.3(2)XC.

Customers should prepare to upgrade using the migration path shown in Figure 1.

Please note: This 12.3(2)XC release only lists features which are new to the respective platforms.

Figure 1:

Cisco IOS Software Release 12.3(2)XC Release Train and Migration Guide

New Features in Cisco IOS Software Release 12.3(2)XC

Table 1  Cisco IOS Software Release 12.3(2)XC New Features

New Features
SOHO91
SOHO96
SOHO97
Cisco 827-4V
Cisco 828
Cisco 831
Cisco 836
Cisco 837
Cisco 1701
Cisco 1710
Cisco 1711
Cisco 1712
Cisco 1720
Cisco 1721
Cisco 1751/1751-V
Cisco 1760
New Hardware
                               

4-port Ethernet WIC

-

-

-

-

-

-

-

-

-

-

-

-

-

X

X

X

New Software Features
                             

Managed LAN Switch

-

-

-

-

-

X

X

X

-

-

-

-

-

-

-

-

Policy based routing for 827-4V

-

-

-

X

-

-

-

-

-

-

-

-

-

-

-

-

TACACS+

-

X

X

-

-

-

X

X

-

-

-

-

-

-

-

-

Confman MIB

X

X

X

-

-

X

X

X

-

-

-

-

-

-

-

-

BGP Routing Protocol

-

-

-

-

-

X

X

X

-

-

-

-

-

-

-

-

Aux capability on 836 console port

-

-

-

-

-

-

X

-

-

-

-

-

-

-

-

-

X.25 over ISDN support for the ISDN line on 836

-

-

-

-

-

-

X

-

-

-

-

-

-

-

-

-

OSPF Routing Protocol

-

-

-

-

-

X

X

X

-

-

-

-

-

-

-

-

URPF
(Unicast Reverse Path Forwarding check)

X

X

X

-

X

X

X

X

-

-

-

-

-

-

-

-

Class Based Traffic Policing with
CLP tagging

-

-

-

X

X

-

X

X

-

-

-

-

-

-

-

-

Client initiated L2TP support
(LAC functionality)

-

-

-

-

-

X

X

X

-

-

-

-

-

-

-

-


Detailed Information

New Hardware

4-Port Ethernet WIC

Supported platforms: Cisco 1721, 1751, 1751-V, 1760; supported in all Cisco 1700 legacy and cross-platform images (all `y' images)

This new four-port 10/100BASE-TX/Layer 2 Fast Ethernet Switch in a WAN Interface Card (WIC) form factor (part number WIC-4ESW) allows businesses to support and manage LAN and WAN configurations on a single device. The switch interfaces support Spanning Tree Protocol 802.1D and can be used to connect up to four physical LANs, or up to 16 IEEE 802.1Q virtual LANs (VLANs).

New Software Features

Managed LAN Switch

Supported platforms: Cisco 831, 836 and 837; supported in all images (all k9o3y6 images)

Cisco 831, 836 and 837 routers support managed LAN Switch ports. The LAN ports on the routers support the following features to provide them with limited management capabilities as stated below:

Issue a command to detect if a device is connected to a port

Enable/disable LAN port

Issue a command to display the state of the interface: enabled or disabled, speed, mode (duplex, full etc.)

Ability to set a port speed to either "10Mbps" "100Mbps" or "auto-sense" and a command to display the speed setting that should be available. Default setting will be "auto-sense".

Ability to set port mode to "half-duplex", "full-duplex", or "auto-negotiate". This is to allow for customers to remotely troubleshoot problems that may arise from connecting to other switches at the premises where the switches connected to the Cisco 83x platforms is not able to "train" up. Default is "auto-negotiate".

Ability to set the port cable type to cross-over or straight. Default is automatic selection of the cable type.

To Note: No MIB support for this feature at this time.

With the availability of the above features, customers will be able to remotely troubleshoot problems with the connecting devices to the switch ports—either eliminate the Cisco CPE (Customer Premises Equipment) as causing the problem or ascertain that the Cisco CPE is at fault.

Policy-Based Routing for 827-4V

Supported platforms: Cisco 827-4V; supported in all images (all k9o3y6 images)

RTP packets are policy-routed to different PVCs based on configured route maps (reference to CSCdx82627 bug fix).

TACACS+

Supported platforms: Cisco 836 and 837 and SOHO 96 and 97; supported in all images (all k9o3y6 images).

TACACS+ is a Cisco developed protocol for AAA—Authentication, Authorization and Accounting.


Note: Cisco 831 and SOHO 91 already support TACACS+.


Confman MIB

Supported platforms: Cisco 831, 836, and 837 and SOHO 91, 96, and 97; supported in all images.

Service Providers can use this feature to automatically backup router configuration to a central server.

BGP Routing Protocol and BGP MIB

Supported platforms: Cisco 831, 836, and 837; supported in all PLUS images (all k9o3sy6 images).

BGP provides loop-free interdomain routing between autonomous systems. It exchanges network information with other BGP systems by creating a TCP connection to its peers and exchanging routing updates over this connection, including information about the list of autonomous systems paths.

BGP on the Cisco 83x platforms only supports specific policy and security requirements for certain networks. BGP will not carry/or support the Internet BGP routing tables. This is due to memory constraints on the 83x platforms.

BGP support on the Cisco 83x Series provides support for up to 500 ACLs (Access Lists) (per platform).

Auxiliary Capability on Cisco 836 Console Port

Supported platforms: Cisco 836; supported in all images (all k9o3y6 images).

Supporting dial backup via aux port brings Cisco 836 on par with 837 for base and PLUS feature sets.

The following scenarios are supported for dial backup:

ADSL as primary and ISDN as dial backup (PLUS dial backup feature set) (functionality exists today)

ADSL as primary and aux port as backup (same functionality as 837)

ISDN as primary and aux port as backup

X.25 over ISDN support for the ISDN line on Cisco 836

Supported platforms: Cisco 836; supported in PLUS images (all k9o3sy6 images).

In ISDN there are three channels—2 B channels (bearer channels—each with 64 Kbytes) and 1 D channel (with 16 Kbytes) where signaling info is sent and received. On the D channel, X.25 data can be sent with up to 9.6 Kbps. X.25 over ISDN D-channel support for PPP traffic is required. This is the same functionality that has existed on the Cisco 803 ISDN models. This is used to transmit low bandwidth/low volume data as it is tariffed to work well for that.

OSPF Routing Protocol

Supported platforms: Cisco 831, 836, and 837; supported in all PLUS images (all k9o3sy6 images).

OSPF is standard routing protocol and is widely used in banks and financial institutions. Customers use OSPF to trigger dial backup function and OSPF provides fast convergence using a standardized protocol. OSPF MIB is supported.

URPF (Unicast Reverse Path Forwarding check)

Supported platforms: Cisco 828, 831, 836, and 837 and SOHO 91, 96 and 97; supported in all images.

Unicast reverse path forward check is a feature that automatically when applied will prevent certain DOS—denial of service—attacks like LAND.C and others. The feature verifies that packets coming from an unreachable source are dropped.

This feature is mentioned as having some caveats in the release notes for Cisco 820 and SOHO 70 series for 12.2(1)XD—details can be found at

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122relnt/800/rn800xd.htm

and

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122relnt/soho_70/rn70xd.htm

Class Based Traffic Policing with CLP tagging

Supported platforms: Cisco 827-4V, 828, 836, and 837; supported in all PLUS images (all k9o3sy6 images).

Class Based Traffic Policing with CLP tagging is a feature that allows for policing of traffic based on classification and actions on traffic that exceeds the contract between the Service Provider and their customer.

The purpose of this feature is to mark traffic that does not meet the contract so that the packets that exceed the contract can be dropped by the network if the network is congested.

Client initiated L2TP support (LAC functionality)

Supported platforms: Cisco 831, 836, and 837; supported in all images (all k9o3y6 images).

The CPE device will be able to initiate an L2TP session to a LNS situated on the network. The PPP session will be terminated on the LNS. This also allows for easier management since the existing PPP infrastructure concepts can be used.

Product Numbers

Table 2 and Table 3 provide the feature sets, images, and memory recommendations for Cisco IOS Software Release 12.3(2)XC.

Please note:

1. Cisco 1710 is limited to 16 MB Flash memory.

2. All Cisco 1700 Platforms with the exception of Cisco 1710 that are listed in Table 3 support Security Device Manager (SDM). Please note that SMD requires an additional 2.3 MB of Flash memory.

Table 2  Cisco IOS Software Release 12.3(2)XC Cisco SOHO and 800 Feature Sets, Images, and Memory Recommendations 

Platform1
Feature Set
Image Name
Image File Name
Recommended Memory
       
Flash
DRAM
Cisco 827-4V

IP/VOICE

Cisco 827-4V IOS IP/VOICE

c820-v6y6-mz

12 MB

48 MB

 

IP/VOICE PLUS

Cisco 827-4V IOS IP/VOICE PLUS

c820-sv6y6-mz

12 MB

48 MB

 

IP/FW/VOICE

Cisco 827-4V IOS IP/FW/VOICE

c820-ov6y6-mz

12 MB

48 MB

 

IP/FW/VOICE PLUS 3DES

Cisco 827-4V IOS IP/FW/VOICE PLUS 3DES

c820-k9osv6y6-mz

12 MB

48 MB

       

Flash

DRAM

Cisco 828

IP

Cisco 828 Series IOS IP

c828-y6-mz

8 MB

20 MB

 

IP/FW

Cisco 828 Series IOS IP/FW

c828-oy6-mz

8 MB

20 MB

 

IP PLUS

Cisco 828 Series IOS IP PLUS

c828-sy6-mz

8 MB

24 MB

 

IP/FW/PLUS 3DES

Cisco 828 Series IOS IP/FW/PLUS 3DES

c828-k9osy6-mz

8 MB

32 MB

Cisco 831

IOS IP/FW 3DES

Cisco 831 IOS
IP/FW 3DES

c831-k9o3y6-mz

12 MB

32 MB

 

IOS IP/FW/PLUS 3DES

Cisco 831 IOS
IP/FW PLUS 3DES

c831-k9o3sy6-mz

12 MB

48 MB

Cisco 836

IOS IP/FW 3DES

Cisco 836 IOS
IP/FW 3DES

c836-k9o3y6-mz

12 MB

32 MB

 

IOS IP/FW/PLUS 3DES

Cisco 836 IOS
IP/FW PLUS 3DES

c836-k9o3sy6-mz

12 MB

48 MB

 

IOS IP/FW/PLUS DIAL BACKUP 3DES

Cisco 836 IOS
IP/FW PLUS DIAL BACKUP 3DES

c836-k9o3s8y6-mz

12 MB

48 MB

Cisco 837

IOS IP/FW 3DES

Cisco 837 IOS
IP/FW 3DES

c837-k9o3y6-mz

12 MB

32 MB

 

IOS IP/FW/PLUS 3DES

Cisco 837 IOS
IP/FW PLUS 3DES

c837-k9o3sy6-mz

12 MB

48 MB

SOHO91

IP/FW 3DES

Cisco SOHO91 Series IP/FW 3DES

soho91-k9oy6-mz

8 MB

32 MB

SOHO96

IP/FW 3DES

Cisco SOHO96 Series IP/FW 3DES

soho96-k9oy1-mz

8 MB

32 MB

SOHO97

IP/FW 3DES

Cisco SOHO97 Series IP/FW 3DES

soho91-k9oy1-mz

8 MB

32 MB


(1) Security Device Manager (SDM) is supported on Cisco 830 Series. Please note that SDM requires an additional 2.3 MB of Flash memory.

Table 3  Recommended Memory for the Cisco 1700 Series Routers—Legacy Images & Cross-Platform Images

Cisco 1700 Legacy Images
 
Recommended Memory
 
Platform
Feature Set
Image Name
Image File Name
Flash
DRAM
Runs from
Cisco 1710 (1)

IP/FW/IDS PLUS IPSEC 3DES

Cisco 1700 IOS IP/FW/IDS PLUS IPSEC 3DES

c1710-k9o3sy-mz

16 MB

64 MB

RAM

Cisco 1710 (1)

IP/IPX/AT/IBM/FW/IDS PLUS IPSEC 3DES

Cisco 1700 IOS IP/IPX/AT/IBM/FW/IDS PLUS IPSEC

c1710-bk9no3r2sy-mz

16 MB

64 MB

RAM

Cisco 1751/1751-V/1760

IP/ADSL/VOX PLUS

Cisco 1700 IOS IP/ADSL/VOX PLUS

c1700-sv8y7-mz

32 MB

96 MB

RAM

Cisco 1751/1751-V/1760

IP/ADSL/VOX/FW/IDS PLUS IPSEC 3DES

Cisco 1700 IOS IP/ADSL/VOX/FW/IDS PLUS IPSEC 3DES

c1700-k9o3sv8y7-mz

32 MB

96 MB

RAM

Cisco 1751/1751-V/1760

IP ADSL/IPX/

AT/IBM/VOX/FW/IDS PLUS IPSEC 3DES

Cisco 1700 IOS IP ADSL/IPX/

AT/IBM/VOX/FW/IDS PLUS IPSEC 3DES

c1700-bk9no3r2sv8y7-mz

32 MB

96 MB

RAM

Cisco 1701/1721/1751/1751-V/1760

IP ADSL/PLUS

Cisco 1700 IOS IP ADSL PLUS

c1700-sy7-mz

16 MB

64 MB

RAM

Cisco 1720/1721/1751/1751-V/1760

IP

Cisco 1700 IOS IP

c1700-y-mz

16 MB

48 MB

RAM

Cisco 1701/1721/1751/1751-V/1760

IP ADSL/IPX/AT/IBM PLUS

Cisco 1700 IOS IP ADSL/IPX/AT/IBM PLUS

c1700-bnr2sy7-mz

16 MB

64 MB

RAM

Cisco 1701/1711/1712/1721/1751/1751-V/1760

IP ADSL/IPX/

AT/IBM/FW/IDS PLUS IPSEC 3DES

Cisco 1700 IOS IP ADSL/IPX/

AT/IBM/FW/IDS PLUS IPSEC 3DES

c1700-bk9no3r2sy7-mz

32 MB

96 MB

RAM

Cisco 1701/1720/1721/1751/1751-V/1760

IP/ADSL

Cisco 1700 IOS IP/ADSL

c1700-y7-mz

16 MB

48 MB

RAM

Cisco 1701/1711/1712/1721/1751/1751-V/1760

IP/ADSL/FW/IDS PLUS IPSEC 3DES

Cisco 1700 IOS IP/ADSL/FW/IDS PLUS IPSEC 3DES

c1700-k9o3sy7-mz

16 MB

64 MB

RAM

Cisco 1700 Cross-Platform Images
 
Recommended Memory
 
Platform
Feature Set
Image Name
Image File Name
Flash
DRAM
Runs from
Cisco 1751/1751-V/1760

IP VOICE

(2)

c1700-ipvoice-mz

32 MB

96 MB

RAM

Cisco 1701/1721/1751/1751-V/1760

ADVANCED IP SERVICES

(2)

c1700-advipservicesk9-mz

32 MB

96 MB

RAM

Cisco 1701/1721/1751/1751-V/1760

SP SERVICES

(2)

c1700-spservicesk9-mz

32 MB

96 MB

RAM

Cisco 1701/1721/1751/1751-V/1760

ENTERPRISE SERVICES

(2)

c1700-entservicesk9-mz

32 MB

96 MB

RAM

Cisco 1701/1711/1712/1721/1751/1751-V/1760

ADVANCED ENTERPRISE SERVICES

(2)

c1700-adventerprisek9-mz

32 MB

96 MB

RAM

Cisco 1701/1721/1751/1751-V/1760

IP BASE

(2)

c1700-ipbase-mz

16 MB

64 MB

RAM

Cisco 1701/1721/1751/1751-V/1760

ENTERPRISE BASE

(2)

c1700-entbase-mz

16 MB

64 MB

RAM

Cisco 1701/1711/1712/1721/1751/1751-V/1760

ADVANCED SECURITY

(2)

c1700-advsecurityk9-mz

16 MB

64 MB

RAM


(1) Security Device Manager (SDM) is NOT supported on the Cisco 1710.
(2) Please see product bulletin "Cisco IOS Software Release 12.3 Mainline and 12.3T Feature Sets for Cisco 1700 Series Routers"—
http://www.cisco.com/en/US/products/hw/routers/ps221/prod_bulletin09186a008016122f.html

Download Information

Customers can download Cisco IOS Software Release 12.3(2)XC Software from the Cisco.com Software Image Library.