Start Here: Cisco IOS Software Release Specifics for IPv6 Features

Transcription

1 Start Here: Cisco IOS Software Specifics for IPv6 Features

2 Start Here: Cisco IOS Software Specifics for IPv6 Features This document lists the IP version 6 (IPv6) features supported in the 12.0 ST, 12.0 S, 12.2 T, and 12.2 S Cisco IOS software release trains. Note IPv6 features are supported only in the 12.0 ST, 12.0 S, 12.2 T, and 12.2 S Cisco IOS software release trains, starting at Cisco IOS 12.0(21)ST, 12.0(22)S, 12.2(2)T, and 12.2(14) S, respectively. The 12.0 ST Cisco IOS software release train was merged with the 12.0 S Cisco IOS software release train starting at Cisco IOS 12.0(22)S; therefore, subsequent releases of only the 12.0 S, 12.2 S, and 12.2 T Cisco IOS software release trains support additional IPv6 features. See Table 1 to determine which IPv6 features are supported in each release of the 12.0 ST, 12.0 S, 12.2 T, and 12.2 S Cisco IOS software trains. The other IPv6 for Cisco IOS Software feature documentation provides implementation and command reference information for IPv6 features supported in the Cisco IOS software. This document details only the Cisco IOS software release specifics for IPv6 features. Not all IPv6 features may be supported in your Cisco IOS software release. We strongly recommend that you read this entire document before reading the other IPv6 for Cisco IOS Software feature documentation. The following sections are included in this document: Supported Software s, page 2 Supported Platforms, page 4 Supported RFCs, page 4 Related Documents, page 5 1

3 Start Here: Cisco IOS Software Specifics for IPv6 Features Supported Software s Supported Software s Table 1 lists the IPv6 features supported in the 12.0 ST, 12.0 S, 12.2 T, and 12.2 S Cisco IOS software release trains. Note Note Table 1 lists only the Cisco IOS software release that introduced support for a given feature in a given Cisco IOS software release train. Unless noted otherwise in Table 1, subsequent releases of that Cisco IOS software release train also support that feature. Table 1 Supported IPv6 Features Feature 12.0 ST S 12.2 T 12.2 S IPv6 unicast routing 12.0(21)ST 12.0(22)S 12.2(2)T 12.2(14)S Services: Internet Protocol version (21)ST 12.0(22)S 12.2(2)T 12.2(14)S IPv6 addressing architecture 12.0(21)ST 12.0(22)S 12.2(2)T 12.2(14)S ICMPv6 12.0(21)ST 12.0(22)S 12.2(2)T 12.2(14)S Neighbor discovery 12.0(21)ST 12.0(22)S 12.2(2)T 12.2(14)S IPv6 stateless autoconfiguration 12.0(21)ST 12.0(22)S 12.2(2)T 12.2(14)S MTU path discovery for IPv6 12.0(21)ST 12.0(22)S 12.2(2)T 12.2(14)S DNS lookups over an IPv4 transport 12.0(21)ST 12.0(22)S 12.2(2)T 12.2(14)S DNS lookups over an IPv6 transport 12.0(21)ST 12.0(22)S 12.2(8)T 12.2(14)S ICMPv6 redirect 12.0(21)ST 12.0(22)S 12.2(4)T 12.2(14)S IPv6 duplicate address detection 12.0(21)ST 12.0(22)S 12.2(4)T 12.2(14)S IPv6 MIB support for SNMP 12.0(22)S 12.2(15)T 12.2(14)S Static cache entry for IPv6 neighbor 12.0(21)ST 12.0(22)S 12.2(8)T 12.2(14)S discovery Secure Shell SSH support over IPv6 12.0(22)S 12.2(8)T 12.2(14)S IPv6 standard access control list 12.0(21)ST 12.0(22)S 12.2(2)T 12.2(14)S IPv6 extended access control list 12.0(23)S 12.2(13)T 12.2(14)S Enhanced IPv6 features for ADSL and 12.2(13)T dial deployment IPv6 Hardware Forwarding on Cisco 12.0(23)S Series ISE line cards IPv6 ICMP rate limiting using token 12.0(21)ST 12.0(22)S 12.2(8)T 12.2(14)S bucket algorithm Tunneling IPv6 manually configured tunnels 12.0(21)ST (23)S (2)T 12.2(14)S IPv6 over IPv4 GRE tunnels 12.0(21)ST (22)S (4)T 12.2(14)S Automatic 6to4 tunnels for IPv6 12.0(21)ST (22)S (2)T 12.2(14)S 4 Automatic IPv4-compatible tunnels 12.0(21)ST 12.0(22)S 12.2(2)T 12.2(14)S 4 ISATAP tunnels 12.2(15)T 12.2(14)S 4 2

4 Start Here: Cisco IOS Software Specifics for IPv6 Features Supported Software s Table 1 Supported IPv6 Features (continued) Feature 12.0 ST S 12.2 T 12.2 S Data link layer protocols: Routing protocols: Switching services: IPv6 over UTI using a tunnel line card (23)S ATM PVC and ATM LANE 12.0(21)ST (22)S (2)T 12.2(14)S CDP IPv6 address support for neighbor 12.2(8)T 12.2(14)S information Ethernet, Fast Ethernet, Gigabit Ethernet, 12.0(21)ST 12.0(22)S 12.2(2)T 12.2(14)S and 10-Gigabit Ethernet FDDI 12.2(2)T 12.2(14)S Frame Relay PVC (21)ST 12.0(22)S 12.2(2)T 12.2(14)S Cisco High-Level Data Link Control 12.0(21)ST 12.0(22)S 12.2(2)T 12.2(14)S PPP over Packet-Over-SONET, ISDN, 12.0(21)ST 12.0(22)S 12.2(2)T 12.2(14)S and serial (synchronous and asynchronous) interface types VLANs using Inter-Switch Link and 12.0(21)ST 12.0(22)S 12.2(2)T 12.2(14)S IEEE 802.1Q encapsulation Dynamic Packet Transport 12.0(23)S Integrated IS-IS for IPv6 12.0(21)ST 12.0(22)S 12.2(8)T 12.2(14)S Multitopology IS-IS for IPv6 12.2(15)T OSPF for IPv6 12.0(24)S 12.2(15)T Link-local address peering in 12.0(21)ST 12.0(22)S 12.2(4)T 12.2(14)S multiprotocol BGP extensions for IPv6 Multiprotocol BGP extensions for IPv6 12.0(21)ST 12.0(22)S 12.2(2)T 12.2(14)S RIP for IPv (21)ST 12.0(22)S 12.2(2)T 12.2(14)S Static routes 12.0(21)ST 12.0(22)S 12.2(2)T 12.2(14)S Route redistribution 12.0(21)ST 12.0(22)S 12.2(2)T 12.2(14)S NAT Protocol Translation 12.2(13)T CEF/dCEF switching for IPv (21)ST 12.0(22)S 12.2(13)T 12.2(14)S IPv6 provider edge router over MPLS (22)S 12.2(15)T 12.2(14)S IPv6 Quality of Service (QoS) 12.2(13)T 1. The 12.0 ST Cisco IOS software train was merged with the 12.0 S Cisco IOS software release train starting at Cisco IOS 12.0(22)S; therefore, subsequent releases of only the 12.0 S and 12.2 T Cisco IOS software trains support additional IPv6 features. 2. In Cisco IOS 12.0(23)S, the Cisco series Internet router provides enhanced performance for IPv6 manually configured tunnels by processing traffic on the line card. 3. IPv6 over IPv4 GRE tunnels are not supported on the Cisco series Internet router. 4. The following tunneling mechanisms are now supported by CEF: configured, automatic, 6to4, and Intra-Site Automatic Tunnel Addressing Protocol (ISATAP). 5. Supported on the Cisco series Internet router only. 6. Only ATM PVCs are supported in the 12.0 ST and 12.0 S Cisco IOS software release trains; ATM LANE is not supported. 7. Frame Relay PVCs are not supported by Distributed CEF switching for IPv6 (dcefv6) in the 12.0 S and 12.0 ST Cisco IOS software trains. In the Cisco series Internet routers, Frame Relay encapsulated IPv6 packets are process switched on the Route Processor. 8. The RIP for IPv6 feature was updated in the 12.2(13)T Cisco IOS software release. 9. The Cisco Internet router is supported in the 12.0(24)S Cisco IOS software release. 3

5 Supported Platforms Start Here: Cisco IOS Software Specifics for IPv6 Features Supported Platforms Determining Platform Support Through Cisco Feature Navigator Cisco IOS software is packaged in feature sets that are supported on specific platforms. To obtain updated information about platform support for this feature, access Cisco Feature Navigator. Cisco Feature Navigator dynamically updates the list of supported platforms as new platform support is added for the feature. Cisco Feature Navigator is a web-based tool that enables you to determine which Cisco IOS software images support a specific set of features and which features are supported in a specific Cisco IOS image. You can search by feature or release. In the release section, you can compare releases side by side to display both the features unique to each software release and the features that releases have in common. To access Cisco Feature Navigator, you must have an account on Cisco.com. If you have forgotten or lost your account information, send a blank to cco-locksmith@cisco.com. An automatic check will verify that your address is registered with Cisco.com. If the check is successful, account details with a new random password will be ed to you. Qualified users can establish an account on Cisco.com by following the directions at Cisco Feature Navigator is updated regularly when major Cisco IOS software releases and technology releases occur. For the most current information, go to the Cisco Feature Navigator home page at the following URL: Availability of Cisco IOS Software Images Platform support for particular Cisco IOS software releases is dependent on the availability of the software images for those platforms. Software images for some platforms may be deferred, delayed, or changed without prior notice. For updated information about platform support and availability of software images for each Cisco IOS software release, refer to the online release notes or, if supported, Cisco Feature Navigator. Supported RFCs RFC 1886, DNS Extensions to Support IP version 6 RFC 1981, Path MTU Discovery for IP version 6 RFC 2080, RIPng for IPv6 RFC 2328, OSPF Version 2 RFC 2373, IP Version 6 Addressing Architecture RFC 2374, An Aggregatable Global Unicast Address Format RFC 2460, Internet Protocol, Version 6 (IPv6) Specification RFC 2461, Neighbor Discovery for IP Version 6 (IPv6) RFC 2462, IPv6 Stateless Address Autoconfiguration RFC 2463, Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification 4

6 Start Here: Cisco IOS Software Specifics for IPv6 Features Related Document RFC 2464, Transmission of IPv6 Packets over Ethernet Networks RFC 2467, Transmission of IPv6 Packets over FDDI Networks RFC 2472, IP Version 6 over PPP RFC 2474, Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers RFC 2475, An Architecture for Differentiated Services Framework RFC 2492, IPv6 over ATM Networks RFC 2545, Use of BGP-4 Multiprotocol Extensions for IPv6 Inter-Domain Routing RFC 2590, Transmission of IPv6 Packets over Frame Relay Networks Specification RFC 2597, Assured Forwarding PHB RFC 2598, An Expedited Forwarding PHB RFC 2697, A Single Rate Three Color Marker RFC 2698, A Two Rate Three Color Marker RFC 2740, OSPF for IPv6 RFC 2766, Network Address Translation Protocol Translation (NAT-PT) RFC 2858, Multiprotocol Extensions for BGP-4 RFC 2893, Transition Mechanisms for IPv6 Hosts and Routers RFC 3056, Connection of IPv6 Domains via IPv4 Clouds The draft RFCs supported are as follows: draft-ietf-isis-ipv6 Routing IPv6 with IS-IS draft-ietf-ngtrans-bgp-tunnel Connecting IPv6 Islands across IPv4 Clouds with BGP - aka 6PE draft-ietf-ngtrans-isatap Intra-Site Automatic Tunnel Addressing Protocol (ISATAP) draft-ietf-isis-wg-multi-topology, M-ISIS: Multi-Topology (MT) Routing in IS-IS MIBs MIBs 1 CISCO-IETF-IP-FORWARD-MIB CISCO-IETF-IP-MIB MIBs Link To obtain lists of supported MIBs by platform and Cisco IOS release, and to download MIB modules, go to the Cisco MIB website on Cisco.com at the following URL: 1. Not all supported MIBs are listed. Related Documents Refer to the configuration guide and command reference publications at the following website on Cisco.com for IPv4 configuration and command reference information: oks_list.html 5

7 Related Document Start Here: Cisco IOS Software Specifics for IPv6 Features oks_list.html Refer to the following website on Cisco.com for more information on the Cisco implementation of and training for IPv6: Refer to the IPv6 internetworking solutions documents (ISDs) at the following website on Cisco.com for information that will help you deploy IPv6 in your network: 6

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