1084 Configuring IPv6 RoutingConfiguring IPv6 Interface SettingsBeginning in Privileged EXEC mode, use the following commands toconfigure IPv6 settings for VLAN, tunnel, or loopback interfaces.Command Purposeconfigure Enter Global Configuration mode.interface {vlan |tunnel | loopback}interface-idEnter Interface Configuration mode for the specified VLAN,tunnel, or loopback interface.ipv6 enable Enable IPv6 on the interface. Configuring an IPv6 addresswill automatically enable IPv6 on the interface.ipv6 address{autoconfig | dhcp |prefix/prefix-length[eui64]}Configure the IPv6 address and network prefix length.Setting an IPv6 address enables IPv6 on the interface. Youcan also use the ipv6 enable command to enable IPv6 on theinterface without setting an address.Link-local, multicast, IPv4-compatible, and IPv4-mappedaddresses are not allowed to be configured.Include the EUI-64 keyword to have the system add the 64-bit interface ID to the address. You must use a network prefixlength of 64 in this case.For VLAN interfaces, use the dhcp keyword to enable theDHCPv6 client and obtain an IP address form a networkDHCPv6 server.ipv6 mtusize (VLAN interfaces only) Set the IPv6 MaximumTransmission Unit (MTU) on a routing interface. The IPv6MTU is the size of the largest IPv6 packet that can betransmitted on the interface without fragmentation. Therange is 1280–1500 bytes.ipv6 traffic-filterACLnameAdd an access-list filter to this interface.ipv6 unreachables (VLAN interfaces only) Allow the interface to send ICMPv6Destination Unreachable messages. The no ipv6unreachables command suppresses the ICMPv6 unreachablemessages for this interface.exit Exit the interface configuration mode.
