IP Addressing Commands 223Syntax• ipv6 default-gateway ipv6-address• no ipv6 default-gateway• ipv6-address — IPv6 address of the next hop that can be used to reach that network. When theIPv6 address is a Link Local address (IPv6Z address), the outgoing interface name must bespecified. Refer to the usage guidelines for the interface name syntax.Default ConfigurationNo default gateway is defined.Command ModeGlobal Configuration mode.User Guidelines• The IPv6Z address format: <ipv6-link-local-address>%<interface-name>– interface-name — vlan<integer> | ch<integer> | isatap<integer> | <physical-port-name> | 0– integer — <decimal-number> | <integer><decimal-number>– decimal-number — 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9– physical-port-name — Designated port number, for example g1.• Configuring a new default GW without deleting the previous configured information overwritesthe previous configuration.• A configured default GW has a higher precedence over automatically advertised (via routeradvertisement message).• If the egress interface is not specified, the default interface will be selected. Specifying interfacezone=0 is equal to not defining an egress interface.ExampleThe following example defines an IPv6 default gateway.ipv6 mld join-groupThe ipv6 mld join-group interface configuration command configures Multicast Listener Discovery(MLD) reporting for a specified group. To cancel reporting and leave the group, use the no form of thiscommand.Console(config)# ipv6 default-gateway fe80::115400_CLI.book Page 223 Wednesday, December 17, 2008 4:33 PM