Specifying an IPv6 Hop-Count Limit

You can specify the maximum number of hops that the router can use in router advertisements and all IPv6 packets.

You must configure an IPv6 license using the license ipv6 command before using the IPv6 routing protocol configuration commands on the E Series router. All IPv6 routing protocol configurations are removed from the virtual router when you issue the no ipv6 command.

To set the maximum number of hops that the router can use in router advertisements and all IPv6 packets:

• Issue the ipv6 hop-limit command in Global Configuration mode.
  host1(config)#ipv6 hop-limit 50

  Use the no version to set the hop limit for IPv6 packets to 255 hops and router advertisements to zero (0) hops (or “unspecified”).