Table Of Contents
Release Notes for the Cisco 1000 Series Routers for Cisco IOS Release 11.2
Determining Your Cisco IOS Release
Cisco 1000 Series Routers and Platforms Supported
New Features in Release 11.2(1)
IP Protocol and Feature Enhancements
Multimedia and Quality of Service
Data Link Switching+ (DLSw+) Features and Enhancements
Cisco IOS Feature Sets for Cisco 1000 Series Routers
Upgrading to a New Software Release
Traffic Shaping over Frame Relay
Forwarding of Locally Sourced AppleTalk Packets
Caveats for Release 11.2(1) Through 11.2(12)
Caveats for Release 11.2(1) Through 11.2(11)
Caveats for Release 11.2(1) Through 11.2(10)
Caveats for Release 11.2(1) Through 11.2(9)
Caveats for Release 11.2(1) Through 11.2(8)
Caveats for Release 11.2(1) Through 11.2(7)
Caveats for Release 11.2(1) Through 11.2(6)
Caveats for Release 11.2(1) Through 11.2(5)
Caveats for Release 11.2(1) Through 11.2(4)
Caveats for Release 11.2(1) Through 11.2(3)
Caveats for Release 11.2(1) Through 11.2(2)
Release Notes for the Cisco 1000 Series Routers for Cisco IOS Release 11.2
March 2, 1998
These release notes describe the new features and significant software components for Cisco IOS Release 11.2, up to and including Release 11.2(12) for Cisco 1000 series routers.
Introduction
These release notes discuss the following topics:
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Determining Your Cisco IOS Release
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Determining Your Cisco IOS Release
To view the version of Cisco IOS software that is running on your Cisco 1000 series router, log in to the router, and enter the show version user EXEC command:
router> show versionCisco Internetwork Operating System SoftwareIOS (tm) 1005 Software (C1005-Y-M), Version 11.2(7a), RELEASE SOFTWARE (fc1)Copyright (c) 1986-1997 by cisco Systems, Inc.Compiled Tue 01-Jul-97 14:22 by kuongImage text-base: 0x02004000, data-base: 0x022665E0ROM: System Bootstrap, Version 5.3(17727) [enf 129], INTERIM SOFTWAREBOOTFLASH: 1000 Bootstrap Software (C1000-RBOOT-R), Experimental Version10.3(17727) [enf 100]althame uptime is 1 minuteSystem restarted by reloadSystem image file is "master/c1005-y-mz.112-7a", booted via tftp from223.255.254.254cisco 1000 (68360) processor (revision @) with 3584K/512K bytes of memory.Processor board ID 01329973Bridging software.X.25 software, Version 2.0, NET2, BFE and GOSIP compliant.1 Ethernet/IEEE 802.3 interface(s)1 Serial network interface(s)8K bytes of non-volatile configuration memory.2048K bytes of processor board PCMCIA flash (Read/Write)Cisco 1000 Series Routers and Platforms Supported
The following routers are supported by Cisco IOS Release 11.2:
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and summarize the LAN and WAN interfaces supported on each Cisco 1000 series router. "Yes" means that a particular interface is supported. "No" means it is not supported.
Table 1 LAN Interfaces Supported
Ethernet (AUI)
No
No
Yes
Ethernet (10BaseT)
Yes
Yes
Yes
Documentation
For Cisco IOS Release 11.2, the Cisco IOS documentation set consists of eight documentation modules. Each documentation module has a configuration guide, a command reference, and five supporting documents.
Note
The books and chapter topics are as follows:
These documents are available as printed manuals or electronic documents. For electronic documentation of Release 11.2 router and access server software features, refer to the Cisco IOS Release 11.2 configuration guides and command references located in the Cisco IOS Release 11.2 database on the Documentation CD-ROM. You can also access Cisco technical documentation on the World Wide Web at http://www.cisco.com.
Online Navigation
The Cisco IOS software documentation set is available as printed manuals or electronic documents. You can access the electronic documents either on the Cisco Documentation CD-ROM or at Cisco Connection Online (CCO) on the World Wide Web:
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New online navigation enhancements for Release 11.2 include:
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On the Documentation CD-ROM or CCO, go to Cisco IOS Release 11.2, and select Cisco IOS Release 11.2 Configuration Guides, Command References. Then select Configuration Guide Master Index or Command Reference Master Index. To access documentation related to an index entry, click the page number following the entry.
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On the Documentation CD-ROM or CCO, go to Cisco IOS Release 11.2, and select Cisco IOS Release 11.2 Configuration Guides, Command References. Next, select Cisco IOS 11.2 New Features.
To access configuration documentation for a feature, do one of the following:
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For additional information about the Documentation CD-ROM and CCO, refer to the sections "Caveats for Release 11.2(1)" and "Documentation CD-ROM" at the end of these release notes.
New Features in Release 11.2(1)
The following software enhancements added to Release 11.2 are divided into the following subjects:
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Routing Protocols
This section describes routing protocol features that are new in the initial release of Cisco IOS Release 11.2.
IP Protocol and Feature Enhancements
The following new IP protocol software features are available:
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A stub router is the peripheral router in a hub-and-spoke network topology. Stub routers commonly have a WAN connection to the hub router and a small number of LAN network segments (stub networks) that are connected directly to the stub router. To provide full connectivity, the hub routers can be statically configured to know that a particular stub network is reachable via a specified access router. However, if there are multiple hub routers, many stub networks, or asynchronous connections between hubs and spokes, the overhead required to statically configure knowledge of the stub networks on the hub routers becomes too great.
ODR simplifies installation of IP stub networks in which the hub routers dynamically maintain routes to the stub networks. This is accomplished without requiring the configuration of an IP routing protocol at the stub routers. With ODR, the stub advertises IP prefixes corresponding to the IP networks that are configured on its directly connected interfaces. Because ODR advertises IP prefixes, rather than IP network numbers, ODR is able to carry Variable Length Subnet Mask (VLSM) information.
Once ODR is enabled on a hub router, the router begins installing stub network routes in the IP forwarding table. The hub router can also be configured to redistribute these routes into any configured dynamic IP routing protocols. IP does not need to be configured on the stub router. With ODR, a router is automatically considered to be a stub when no IP routing protocols have been configured on it.
The routing protocol that ODR generates is propagated between routers using Cisco Discovery Protocol (CDP). Thus, ODR is partially controlled by the configuration of CDP. Specifically,
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It is recommended that IP filtering be used to limit the network prefixes that the hub router will permit to be learned dynamically through ODR. If the interface has multiple logical IP networks configured (via the IP secondary command), only the primary IP network is advertised through ODR.
Open Shortest Path First (OSPF) Enhancements
The following features have been added to Cisco OSPF software:
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The feature allows the consolidation on a single routing protocol and the benefits of the OSPF routing protocol across the entire network, without incurring excess connection costs.
If the router is part of a point-to-point topology, only one end of the demand circuit needs to be configured for OSPF On-Demand Circuit operation. In point-to-multipoint topologies, all appropriate routers must be configured with OSPF On-Demand Circuit. All routers in an area must support this feature—that is, be running Cisco IOS Software Release 11.2 or greater.
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OSPF NSSA defines a more flexible, hybrid method, whereby stub areas can import external OSPF routes in a limited fashion so that OSPF can be extended across the stub to backbone connection.
NSSA enables OSPF to be extended across a stub area to backbone area connection to become logically part of the same network.
Border Gateway Protocol version 4 (BGP4) Enhancements
The following features have been added to Cisco BGP4 software:
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BGP4 Multipath Support can support up to six paths.
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Network Address Translation
Network Address Translation (NAT) provides a mechanism for a privately addressed network to access registered networks, such as the Internet, without requiring a registered subnet address. This eliminates the need for host renumbering and allows the same IP address range to be used in multiple intranets.
With NAT, the privately addressed network (designated as "inside") continues to use its existing private or obsolete addresses. These addresses are converted into legal addresses before packets are forwarded onto the registered network (designated as "outside"). The translation function is compatible with standard routing; the feature is required only on the router connecting the inside network to the outside domain.
Translations can be static or dynamic in nature. A static address translation establishes a one-to-one mapping between the inside network and the outside domain. Dynamic address translations are defined by describing the local addresses to be translated and the pool of addresses from which to allocate outside addresses. Allocation is done in numeric order and multiple pools of contiguous address blocks can be defined.
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Because the addressing scheme on the inside network might conflict with registered addresses already assigned within the Internet, NAT can support a separate address pool for overlapping networks and translate as appropriate.
Applications that use raw IP addresses as a part of their protocol exchanges are incompatible with NAT. Typically, these are less common applications that do not use fully qualified domain names.
Named IP Access Control List
The Named IP Access Control List (ACL) feature gives network managers the option of using names for their access control lists. Named IP ACLs function similarly to their numbered counter-parts.
This feature also includes a new configuration mode, that supports addition and deletion of single lines in a multiline access control list.
This feature eliminates some of the confusion associated with maintaining long access control lists. Meaningful names can be assigned, making it easier to remember which service is controlled by which access control list. Moreover, this feature removes the limit of 100 extended and 99 standard access control lists so that additional IP access control lists can be configured.
The new configuration feature allows a network manager to edit access control lists, rather than re-creating the entire list.
Currently, only packet and route filters can use Named IP ACL. Also, named IP ACLs are not backward-compatible with earlier releases of Cisco IOS software.
Named IP ACLs are not currently supported with Distributed Fast Switching.
Multimedia and Quality of Service
The following features have been added to Cisco multimedia and quality of service software:
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RSVP requires both a network implementation and a client implementation. Applications need to be RSVP-enabled to take advantage of RSVP functionality. Currently, Precept provides an implementation of RSVP for Windows-based PCs. Companies such as Sun and Silicon Graphics have demonstrated RSVP on their platforms. Several application developers are planning to take advantage of RSVP in their applications.
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RED is enabled on a per-interface basis. It "throttles back" lower-priority traffic first, allowing higher-priority traffic (as designated by an RSVP reservation or the IP precedence value) to continue.
RED works with RSVP to maintain end-to-end quality of service during peak traffic loads. Congestion is avoided by selectively dropping traffic during peak load periods. This is performed in a manner designed to damp out waves of sessions going through TCP slow start.
Existing networks can be upgraded to better handle RSVP and priority traffic. Additionally, RED can be used in existing networks to manage congestion more effectively on higher-speed links where fair queuing is expensive.
Exercise caution when enabling RED on interfaces that support multiprotocol traffic (in addition to TCP/IP), such as IPX or AppleTalk. RED is not designed for use with these protocols and could have deleterious affects.
RED is a queuing technique; it cannot be used on the same interface as other queuing techniques, such as Standard Queuing, Custom Queuing, Priority Queuing, or Fair Queuing.
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Topologies that have high-speed links feeding into lower-speed links—such as a central site to a remote or branch sites—often experience bottlenecks at the remote end because of the speed mismatch. Generic Traffic Shaping helps eliminate the bottleneck situation by throttling back traffic volume at the source end.
Routers can be configured to transmit at a lower bit rate than the interface bit rate. Service providers or large enterprises can use the feature to partition, for example, T1 or T3 links into smaller channels to match service ordered by customers.
Generic Traffic Shaping implements a Weighted Fair Queuing (WFQ) on an interface or subinterface to allow the desired level of traffic flow. The feature consumes router memory and CPU resources, so it must be used judiciously to regulate critical traffic flows while not degrading overall router performance.
Multiprotocol Routing
The following enhancement has been made to Cisco multiprotocol routing:
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These enhancements are particularly applicable in networking environments having many low-speed links (typically in hub-and-spoke topologies); in Non-Broadcast-Multiple-Access (NBMA) wide-area networks such as Frame Relay, ATM, or X.25 backbones; and in highly redundant, dense router-router peering configurations. It should be noted that the basic Enhanced IGRP routing algorithm that exhibits very fast convergence and guaranteed loop-free paths has not changed, so there are no backwards compatibility issues with earlier versions of Cisco IOS software.
Switching Features
The following feature has been added to Cisco switching software:
Integrated Routing and Bridging—Integrated routing and bridging (IRB) delivers the functionality to extend VLANs and Layer 2 bridged domains across the groups of interfaces on Cisco IOS software-based routers and interconnect them to the routed domains within the same router.
The ability to route and bridge the same protocol on multiple independent sets of interfaces of the same Cisco IOS software-based router makes it possible to route between these routed and the bridged domains within that router. IRB provides a scalable mechanism for integration of Layer 2 and Layer 3 domains within the same device.
Integrated routing and bridging provides:
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Desktop Protocols
This section describes the desktop protocol features that are new in the initial release of Cisco IOS Release 11.2.
AppleTalk Features
The following feature has been added to Cisco AppleTalk software:
AppleTalk Load Balancing—This feature allows AppleTalk data traffic to be distributed more evenly across redundant links in a network.
AppleTalk load balancing can reduce network costs by allowing more efficient use of network resources. Network reliability is improved because the chance that network paths between nodes will become overloaded is reduced. For convenience, load balancing is provided for networks using native AppleTalk routing protocols such as Routing Table Maintenance Protocol (RTMP) and Enhanced IGRP.
AppleTalk load balancing operates with process and fast switching.
Novell Features
The following features have been added to Cisco Novell software:
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This feature allows logging of
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Matching packets and logging-enabled ACLs are sent at the process level. Router logging facilities use the IP protocol.
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Protocol types supported include RIP, SAP, NCP, and NetBIOS. Supported socket types include Novell Diagnostics Packet Enhanced IGRP and NLSP.
Wide-Area Networking Features
This section describes the wide-area networking features that are new in the initial release of Cisco IOS Release 11.2:
ISDN/DDR Enhancements
The following features have been added to Cisco ISDN and DDR software:
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MMP is based on the concept of a stackgroup—a group of routers or access servers that operate as a group when receiving MLP calls. Any member of the stackgroup can answer any call into the single access number applied to all WAN interfaces. Typically, the access number corresponds to a telco hunt group.
Cross-platform aggregation is performed via tunneling between members of a stackgroup using the Level 2 Forwarding (L2F) protocol, a draft IETF standard.
MMP is flexible and scalable. Because the L2F protocol is IP-based, members of a stackgroup can be connected over many types of LAN or WAN media. Stackgroup size can be increased by increasing the bandwidth available to the L2F protocol, for example, by moving from shared to switched Ethernet.
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Service providers who wish to offer private dial-up network services can use VPDN to provide a single telephone number for all their client organizations. A customer can use dial-up access to a local point of presence where the access server identifies the customer by PPP username. The PPP username is also used to establish a home gateway destination. When the home gateway is identified, the access server builds a secure tunnel across the service provider backbone to the customer home gateway. The PPP session is also transported to this home gateway, where local security measures can ensure the person is allowed access to the network behind the home gateway.
Of special interest to service providers is the VPDN independence of WAN technology. Because L2F is TCP/IP-based, it can be used over any type of service-provider backbone network.
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Dialer profile extends the flexibility of current dial-up configurations. For example, on a single ISDN PRI or PRI rotary group, it is now possible to allocate separate profiles for different classes of user. These profiles might define normal DDR usage or backup usage.
Each dialer profile uses an Interface Descriptor Block (IDB) distinct from the IDB of the physical interface used to place or receive calls. When a call is established, both IDBs are bound together so that traffic can flow. As a result, dialer profiles use more IDBs than normal DDR.
This initial release of dialer profiles does not support Frame Relay, X.25, or Link Access Procedure Balance (LAPB) encapsulation on DDR links or Snapshot Routing capabilities.
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A large installed base of early Combinet product users could not upgrade to later software releases that support interoperability standards such as PPP. With CPP support, these users can integrate their existing product base into new Cisco IOS software-based internetworks.
CPP does not provide many of the functions available in the Cisco implementation of the PPP standards. These functions include address negotiation and support for protocols like AppleTalk. Where possible, Cisco recommends that customers migrate to software that supports PPP.
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This feature is process switched.
Frame Relay Enhancements
The following features have been added to Cisco Frame Relay software:
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Frame Relay SVCs offer cost savings via usage-based pricing instead of fixed pricing for a PVC connection, dynamic modification of network topologies with any-to-any connectivity, dynamic network bandwidth allocation, or bandwidth-on-demand for large data transfers such as FTP traffic, backup for PVC backbones, and conservation of resources in private networks.
To use Frame Relay SVCs, Frame Relay SVC must be supported by the Frame Relay switches used in the network. Also, a Physical Local Loop Connection, such as a leased or dedicated line, must exist between the router (DTE) and the local Frame Relay switch.
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The Frame Relay protocol defines several parameters that are useful for managing network traffic congestion. These include Committed Information Rate (CIR), Forward/Backward Explicit Congestion Notification (FECN/BECN), and Discard Eligibility (DE) bit. Cisco already provides support for FECN for DECnet and OSI, BECN for Systems Network Architecture (SNA) traffic using direct LLC2 encapsulation via RFC 1490, and DE bit support. The Frame Relay Traffic Shaping feature builds upon this support by providing the following three capabilities:
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Frame Relay Traffic Shaping:
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The three capabilities of the Traffic Shaping for Frame Relay feature require the router to buffer packets to control traffic flow and compute data rate tables. Because of this router memory and CPU utilization, these features must be used judiciously to regulate critical traffic flows while not degrading overall Frame Relay performance.
IBM Functionality
This section describes the IBM network software features and support that are new in the initial release of Cisco IOS Release 11.2.
New Features
The following new IBM software features are available:
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The NCIA server supports SNA and NetBIOS sessions over a variety of LAN and WAN connections, including dial-up connections. The NCIA architecture supports clients with full SNA stacks, providing all advanced SNA capabilities, unlike some split-stack solutions.
NCIA server enhancements provide:
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Note that each client is a full SNA physical unit (PU) with one or more logical unit (LU)s. As such, each device requires one LLC connection at the central site router. The Cisco 4700 currently supports 3000 to 4000 LLC connections.
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The TN3270 Server on the CIP supports up to 8000 concurrent sessions on a CIP and up to 16,000 concurrent sessions on a CIP2 card. The TN3270 Server offers the following advanced capabilities:
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TN3270 Server requires 32 MB of CIP DRAM to support up to 4000 sessions, 64 MB to support 8000 sessions, and 128 MB to support 16000 sessions. TN3270 Server can run concurrently with any of the other CIP applications (IP Datagram, TCP/IP Off-load, or CSNA), but operation of any of these features affects the total number of sessions supported due to contention for CIP processor cycles.
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Fast Switched SR/TLB improves performance on all platforms by a factor of at least two. It is ideal for IBM environments (for example, where low-cost Ethernet adapters are being installed on campus, but Token Ring connectivity to a front-end processor
(FEP) is still required) and for campus environments with a mix of Token Ring and Ethernet LANs or switches that rely on the Cisco IOS software for translational bridging.
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RTR enables the following functions to be performed:
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The RTR feature is currently available only with feature sets that include IBM support. A CiscoWorks Blue network management application will be available to support the RTR feature. Both the CiscoWorks Blue network management application and the router use the Cisco Round Trip Time Monitor (RTTMON) MIB. This MIB is also available with Release 11.2.
APPN Enhancements
The following features have been added to Cisco Advanced Peer-to-Peer Networking (APPN) software:
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The CDS reduces broadcast traffic in the network. Without an active CDS on ACF/VTAM, the NN must send a broadcast message to the network to locate nonlocal resources required for a session. With an active CDS, the NN sends a single request directly to the CDS for the location of the resource. A network broadcast is used only if the resource has not registered with the CDS.
ACF/VTAM must be configured as a CDS. The Cisco IOS NN learns of the capability when network topology is exchanged. To most effectively use the CDS, ENs should register the resources with the NN. Depending on the EN implementation, registration might occur automatically, might require configuration on the EN, or might not be a function of the EN.
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With the APPN DLUR MIB, users have access to information collected about the DLUR function in the Cisco IOS NN and the DLUs attached to it for more complete network management information.
Data Link Switching+ (DLSw+) Features and Enhancements
The following features have been added to Cisco DLSw+ software. These features had previously been available with Remote Source-Route Bridging (RSRB). To provide these features for DLSw+, the Cisco IOS software uses a component known as Virtual Data Link Control (VDLC) that allows one software component to use another software component as a data link.
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With this feature, LNM can be used to manage Token Ring LANs, Control Access Units (CAUs), and Token Ring attached devices over a DLSw+ network. All management functions continue to operate as they would in an RSRB network or source-route bridged network.
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With this feature, NSP can be configured in remote routers, and DLSw+ can provide the path for the remote service point PU to communicate with NetView. This allows full management visibility of resources from a NetView 390 console, while concurrently offering the value-added features of DLSw+ in an SNA network.
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DSPU concentration consolidates the appearance of up to 255 physical units into a single PU appearance to VTAM, minimizing memory and cycles in central site resources (VTAM, NCP, and routers) and speeding network startup. Used in conjunction with DLSw+, network availability and scalability can be maximized.
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With this feature, DLSw+ can be used as a low-cost way to access an APPN backbone or APPN in the data center. In addition, DLSw+ can be used as a transport for APPN, providing nondisruptive recovery from failures and high-speed intermediate routing. In this case, the DLSw+ network appears as a connection network to the APPN network nodes (NNs).
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This feature allows SRB over FDDI to provide the highest speed access between campus resources, while concurrently allowing DLSw+ for access to remote resources.
Currently, SRB over FDDI is supported by the Cisco 7000 and Cisco 7500 series platforms only.
Security Features
This section describes the security features that are new in the initial release of Cisco IOS Release 11.2.
New Features
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This feature can be used to build multiprotocol Virtual Private Networks (VPNs), using encrypted Generic Routing Encapsulation (GRE) tunnels. It can also be used to deploy secure telecommuting services, intranet privacy, and virtual collaborative or community-of-interest networks.
All components of this feature are subject to U.S. Department of Commerce export regulations. Encryption is currently IP only, though it does support multiprotocol GRE tunnels. This feature is most appropriately deployed in a relatively small number of routers, with a logically flat or star-shaped encryption topology. Load-sharing of the encryption/decryption function is not supported. Without a Certification Authority (CA), the one-time authentication effort increases exponentially with the number of routers. Router authentication requires the network administrator to compare the hashes produced by the routers once during initial configuration. This version of encryption is not IPSEC compliant.
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Systems with existing Kerberos V infrastructures can use their Key Distribution Centers (KDCs) to authenticate end users for network or router access.
This is a client implementation, not a Kerberos KDC. Kerberos is generally considered a legacy security service and is most beneficial in networks already using Kerberos.
TACACS+ Enhancements
The following features have been added to the Cisco Terminal Access Controller Access Control System (TACACS)+ software:
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Single Connection is an optimization whereby the network access server maintains a single TCP connection to one or more TACACS+ daemons. The connection is maintained in an open state for as long as possible, instead of being opened and closed each time a session is negotiated. It is expected that Single Connection yields performance improvements on a suitably constructed daemon.
Currently, only the CiscoSecure daemon V1.0.1 supports Single Connection. The network access server must be explicitly configured to support a Single Connection daemon. Configuring Single Connection for a daemon that does not support this feature generates errors when TACACS+ is used.
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The network access server can support both SENDAUTH and SENDPASS simultaneously. It detects if the daemon is able to support SENDAUTH and, if not, will use SENDPASS instead. This negotiation is virtually transparent to the user, with the exception that the down-rev daemon can log the initial SENDAUTH packet as unrecognized.
SENDAUTH functionality requires support from the daemon, as well as the network access server.
Network Management
This section describes the network management features that are new in the initial release of Cisco IOS Release 11.2.
New Features
ClickStart—ClickStart is a Web-based software solution for installing and configuring a Cisco router in minutes. ClickStart enables Cisco 1000 series ISDN access routers to be accessed by any Web browser on any desktop platform including MS Windows, Windows 95, Windows NT, UNIX, and MacOS. The easy-to-use Web-based interface guides users through the router installation process. By completing an initial setup form, a user can easily configure the router and bring up the ISDN network connection. The router is then manageable from a central location so that fine-tuning and upgrades can be performed remotely.
MIBs Supported
The following MIB support has been added:
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See the "APPN Enhancements" section for details.
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See the "New Features" subsection in the "IBM Functionality" section for details.
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Cisco IOS Feature Sets for Cisco 1000 Series Routers
This section lists Cisco IOS software feature sets available in Cisco IOS Release 11.2.
These features are available in specific features sets on specific platforms.through use these feature set matrix symbols to identify features:
Cisco IOS images with 40-bit Data Encryption Standard (DES) support might legally be distributed to any party eligible to receive Cisco IOS software. The 40-bit DES is not a cryptographically strong solution and should not be used to protect sensitive data.
Cisco IOS images with 56-bit DES are subject to International Traffic in Arms Regulations (ITAR) 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 because of U.S. government regulations. Contact your sales representative or distributor for more information, or send e-mail to export@cisco.com.
provides a matrix of the new feature set organization and shows which feature sets are available on the various hardware platforms. These feature sets only apply to Cisco IOS Release 11.2.
Feature Set Tables
The Cisco IOS software is available in different feature sets depending upon the platform. and list the available feature sets for the Cisco series routers.
Table 4 Cisco 1003, Cisco 1004, and Cisco 1005 Routers Software Feature Sets , Part 1
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Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
—
Basic
—
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Plus
Plus
Plus
Plus
(Cisco 1005 only)Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
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—
(Cisco 1003 and Cisco 1004)Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Plus
Plus
Plus
Plus
Basic
Basic
Basic
Basic
Plus
Plus
Plus
Plus
Plus
Plus
Plus
Plus
Plus
Plus
Plus
Plus
Plus
Plus
Plus
Plus
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
—
—
Plus
Plus
—
Basic
—
Basic
Plus
Plus
Plus
Plus
Plus
Plus
Plus
Plus
—
—
Basic
Basic
Plus
Plus
Plus
Plus
Plus
Plus
Plus
Plus
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Encrypt
Encrypt
Encrypt
Encrypt
Basic
Basic
Basic
Basic
1 This table lists feature sets that are common to the Cisco 1003, 1004, and 1005. For Cisco 1005 platform-specific feature sets, see Table 5.
2 The IP, IP/IPX, and IP/AppleTalk feature sets are not available with Plus, Plus 40, or Plus 56 feature-set options in Cisco IOS Release 11.2.
3 Includes AppleTalk load balancing.
4 IRB supports IP, IPX, and AppleTalk; it is supported for transparent bridging, but not for SRB; it is supported on all media-type interfaces except X.25 and ISDN bridged interfaces; and IRB and concurrent routing and bridging (CRB) cannot operate at the same time.
5 The Novell IPX feature includes display SAP by name, IPX Access Control List violation logging, and plain-English IPX access lists.
6 Transparent and translational bridging is fast switched. This enhancement is on by default, but can be disabled.
7 Cisco 1005 "WAN Services" offers three feature set options: Option 1 includes HDLC, PPP, SDMS, and Frame Relay, but not X.25, and is available on all feature sets; Option 2 includes X.25 only and is available with the IP/IPX, IP/AppleTalk, and IP/IPX/AppleTalk feature sets; and Option 3 includes Async, PPP, and SLIP and is available with the IP, IP/IPX feature sets.
8 ISDN support includes calling line identification (CLI/ANI), ISDN subaddressing, and applicable WAN optimization features.
9 Dial-on-demand is available for the Cisco 1005 with "WAN Services" option only. See footnote 7, above.
10 IPX header compression (RFC 1553) is available in the feature sets that support IPX.
11 X.25 and Frame Relay payload compression. Payload compression is available for the Cisco 1005.
12 Snapshot routing is not included for the Cisco 1005.
13 TACACS+ Single Connection and TACACS+ SENDAUTH enhancements are supported.
Table 5 Cisco 1005 Platform-Specific Software Feature Sets, Part 2
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Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
—
—
Basic
Basic
Basic
Basic
—
Basic
Basic
Basic
Basic
Basic
Basic
—
—
Basic
—
—
Basic
—
—
Basic
Basic
Basic
Basic
—
—
Basic
—
—
Basic
—
—
—
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
—
—
Basic
—
—
Basic
—
—
Basic
—
—
Basic
Basic
Basic
Basic
Basic
Basic
—
—
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
Basic
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—
—
Basic
Basic
Basic
Basic
Basic
Basic
1 These feature sets are not available with the Plus, Plus 40, or Plus 56 feature set options in Cisco IOS Release 11.2.
2 IRB supports IP, IPX, and AppleTalk; it is supported for transparent bridging, but not for SRB; it is supported on all media-type interfaces except X.25 and ISDN bridged interfaces; and IRB and concurrent routing and bridging (CRB) cannot operate at the same time.
3 The Novell IPX feature includes display SAP by name, IPX Access Control List violation logging, and plain-English IPX access lists.
4 Transparent and translational bridging is fast switched. This enhancement is on by default, but can be disabled.
5 Cisco 1005 "WAN Services" offers three feature-set options: Option 1 includes HDLC, PPP, SDMS, and Frame Relay, but not X.25, and is available on all feature sets; Option 2 includes X.25 only and is available with the IP/IPX, IP/AppleTalk, and IP/IPX/AppleTalk feature sets; and Option 3 includes async, PPP, and SLIP and is available with the IP, IP/IPX features sets.
6 PPP includes support for LAN protocols supported by the feature set, address negotiation, PAP and CHAP authentication, Multilink PPP, and PPP compression.
7 X.25 is available for the Cisco 1005 only and is available by itself in "WAN Services" Option 2 for the following feature sets: IP/IPX, IP/AppleTalk, and IP/IPX/AppleTalk.
8 Dial-on-demand is available for the Cisco 1005 with "WAN Services" option only. See footnote 5. above.
9 IPX header compression (RFC 1553) is available in the feature sets that support IPX.
10 X.25 and Frame Relay payload compression.
11 Snapshot routing is not included for the Cisco 1005.
12 TACACS+ Single Connection and TACACS+ SENDAUTH enhancements are supported.
Upgrading to a New Software Release
If you are upgrading to Cisco IOS Release 11.2 from an earlier Cisco IOS software release, you should save your current configuration file before configuring your access server with the Cisco IOS Release 11.2 software. An unrecoverable error could occur during download or configuration.
Cisco IOS Upgrade Procedure
For instructions on downloading a current Cisco IOS release from the CCO Trivial File Transfer Protocol (TFTP) server, go to the following URL. This URL is subject to change without notice.
http://www.cisco.com/kobayashi/sw-center
The Software Center window is displayed.
Step 1
Step 2
Step 3
Step 4
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Step 5
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Memory Requirements
Beginning with Cisco IOS Release 10.3, some software image sizes exceed 4 MB and, when compressed, exceed 2 MB. Also, some systems now require more than 1 MB of main system memory for data structure tables.
For Cisco routers to take advantage of the Release 11.2 features, you must upgrade the code or main system memory. Some platforms have specific chip or architecture requirements that affect what can be upgraded and in what increments.
and describe the memory requirements for each Cisco 1000 series router feature set supported by Cisco IOS Release 11.2.
Table 6 Cisco 1003 and Cisco 1004 Memory Requirements
Memory
MemoryIP
2/4 MB optional
83 MB
RAM
IP Plus4
2/4 MB optional
8 MB
RAM
IP Plus 40
2/4 MB optional
8 MB
RAM
IP Plus 56
2/4 MB optional
8 MB
RAM
IP/IPX
2/4 MB optional
8 MB
RAM
IP/AT
2/4 MB optional
8 MB
RAM
IP/IPX/AT
2/4 MB optional
8 MB
RAM
IP/IPX/AT Plus
4 MB5
8 MB
RAM
IP/IPX/AT Plus 40
4 MB5
8 MB
RAM
IP/IPX/AT Plus 56
4 MB5
8 MB
RAM
1 If you need to upgrade the main memory for your Cisco 1003, Cisco 1004, or Cisco 1005 router, be sure to order the upgrade specific to your router.
2 When a system is running from Flash memory, you cannot update the system while it is running. You must use the Flash load helper.
3 Only 4 MB DRAM is required for releases 11.2(1) through 11.2(6).
4 Plus for the Cisco 1003 and Cisco 1004 includes OSPF, PIM, SMRP, NLSP, ATIP, AppleTalk AURP, RSVP, and NAT.
5 Only 2 MB of Flash memory is required for releases 11.2(1) through 11.2(6).
Table 7 Cisco 1005 Memory Requirements
Memory
MemoryIP
2/4 MB optional
83 MB
RAM
IP Plus3
4 MB5
8 MB
RAM
IP Plus 40
4 MB5
8 MB
RAM
IP Plus 56
4 MB5
8 MB
RAM
IP/IPX
2/4 MB optional
8 MB
RAM
IP/AT
2/4 MB optional
83 MB
RAM
IP/IPX/AT
2/4 MB optional
8 MB
RAM
IP/IPX/AT Plus
4 MB5
8 MB
RAM
IP/IPX/AT Plus 40
4 MB5
8 MB
RAM
IP/IPX/AT Plus 56
4 MB5
8 MB
RAM
IP/OSPF/PIM
2/4 MB optional
8 MB
RAM
IP/Async
2/4 MB optional
83 MB
RAM
IP/IPX/Async
2/4 MB optional
8 MB
RAM
1 If you need to upgrade the main memory for your Cisco 1003, Cisco 1004, or Cisco 1005 router, be sure to order the upgrade specific to your router.
2 When a system is running from Flash memory, you cannot update the system while it is running. You must use the Flash load helper.
3 Plus for the Cisco 1005 includes OSPF, PIM, NLSP, SMRP, AppleTalk IP, AppleTalk AURP, Frame Relay SVC, RSVP, and NAT.
Important Notes
This section describes warnings and cautions about using the Cisco IOS Release 11.2 software. It discusses the following topics:
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Traffic Shaping over Frame Relay
Traffic shaping over Frame Relay is available only in Release 11.2(8) and above. Refer to software defect IDs CSCdi60734 and CSCdi 88662.
LAN Extension
The LAN extension interface does not function correctly in Release 11.2(1). The behavior is that the LAN extension NCP negotiates and sets the LAN extension interface state to "up" and the show controller lex number command displays the message "No inventory message received from LAN Extender." Turning on the LAN extension RCMD debugging shows that every remote command is being rejected with the message "LEX-RCMD: encapsulation failure." There is no workaround. Refer to software defect ID CSCdi66478. This defect is fixed in software Release 11.2(2) and above.
Forwarding of Locally Sourced AppleTalk Packets
Our 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 Apple Computer's Inside AppleTalk publication. 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.
Caveats for Release 11.2(1) Through 11.2(12)
Possibly unexpected behavior in Cisco IOS Release 11.2 exists in the following areas:
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A complete list of the caveats, including descriptions and possible workarounds, is available on the Documentation CD-ROM and on CCO:
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Caveats for Release 11.2(1) Through 11.2(11)
Possibly unexpected behavior in Cisco IOS Release 11.2 exists in the following areas:
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A complete list of the caveats, including descriptions and possible workarounds, is available on the Documentation CD-ROM and on CCO:
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Caveats for Release 11.2(1) Through 11.2(10)
Possibly unexpected behavior in Cisco IOS Release 11.2 exists in the following areas:
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A complete list of the caveats, including descriptions and possible workarounds, is available on the Documentation CD-ROM and on CCO:
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Caveats for Release 11.2(1) Through 11.2(9)
Possibly unexpected behavior in Cisco IOS Release 11.2 exists in the following areas:
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A complete list of the caveats, including descriptions and possible workarounds, is available on the Documentation CD-ROM and on CCO:
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Caveats for Release 11.2(1) Through 11.2(8)
Possibly unexpected behavior in Cisco IOS Release 11.2 exists in the following areas:
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A complete list of the caveats, including descriptions and possible workarounds, is available on the Documentation CD-ROM and on CCO:
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Caveats for Release 11.2(1) Through 11.2(7)
Possibly unexpected behavior in Cisco IOS Release 11.2 exists in the following areas:
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A complete list of the caveats, including descriptions and possible workarounds, is available on the Documentation CD-ROM and on CCO:
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Caveats for Release 11.2(1) Through 11.2(6)
Possibly unexpected behavior in Cisco IOS Release 11.2 exists in the following areas:
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A complete list of the caveats, including descriptions and possible workarounds, is available on the Documentation CD-ROM and on CCO:
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Caveats for Release 11.2(1) Through 11.2(5)
Possibly unexpected behavior in Cisco IOS Release 11.2 exists in the following areas:
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A complete list of the caveats, including descriptions and possible workarounds, is available on the Documentation CD-ROM and on CCO:
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Caveats for Release 11.2(1) Through 11.2(4)
Possibly unexpected behavior in Cisco IOS Release 11.2 exists in the following areas:
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A complete list of the caveats, including descriptions and possible workarounds, is available on the Documentation CD-ROM and on CCO:
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Caveats for Release 11.2(1) Through 11.2(3)
Possibly unexpected behavior in Cisco IOS Release 11.2 exists in the following areas:
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A complete list of the caveats, including descriptions and possible workarounds, is available on the Documentation CD-ROM and on CCO:
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Caveats for Release 11.2(1) Through 11.2(2)
Possibly unexpected behavior in Cisco IOS Release 11.2 exists in the following areas:
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A complete list of the caveats, including descriptions and possible workarounds, is available on the Documentation CD-ROM and on CCO:
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Caveats for Release 11.2(1)
Possibly unexpected behavior in Cisco IOS Release 11.2 exists in the following areas:
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A complete list of the caveats, including descriptions and possible workarounds, is available on the Documentation CD-ROM and on CCO:
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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:
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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, select Documentation, and click Enter the feedback form. After you complete the form, click Submit to send it to Cisco. We appreciate your comments.
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