IPv6 RoutingInternet protocol version 6 (IPv6) routing is the successor to IPv4. Due to the rapid growth in internet users and IP addresses, IPv4 isreaching its maximum usage. IPv6 will eventually replace IPv4 usage to allow for the constant expansion.This chapter provides a brief description of the differences between IPv4 and IPv6, and the Dell Networking support of IPv6. This chapteris not intended to be a comprehensive description of IPv6.NOTE: The IPv6 basic commands are supported on all platforms. However, not all features are supported on all platforms, nor forall releases. To determine the Dell Networking Operating System (OS) version supporting which features and platforms, refer toImplementing IPv6 with Dell Networking OS.NOTE: Even though Dell Networking OS listens to all ports, you can only use the ports starting from 1024 for IPv6 traffic. Portsfrom 0 to 1023 are reserved for internal use and you cannot use them for IPv6 traffic.Topics:• Protocol Overview• Implementing IPv6 with Dell Networking OS• ICMPv6• Path MTU Discovery• IPv6 Neighbor Discovery• Secure Shell (SSH) Over an IPv6 Transport• Configuration Tasks for IPv6• Configuring IPv6 RA GuardProtocol OverviewIPv6 is an evolution of IPv4. IPv6 is generally installed as an upgrade in devices and operating systems. Most new devices and operatingsystems support both IPv4 and IPv6.Some key changes in IPv6 are:• Extended address space• Stateless autoconfiguration• Header format simplification• Improved support for options and extensions21IPv6 Routing 429
