Configuration Guide User guide

FastIron Configuration Guide 373
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Static IPv6 route configuration
Disabling router advertisement and solicitation messages
Router advertisement and solicitation messages enable a node on a link to discover the routers on
the same link. By default, router advertisement and solicitation messages are permitted on the
device. To disable these messages, configure an IPv6 access control list that denies them. The
following shows an example configuration.
Example
Brocade(config)#ipv6 access-list rtradvert
Brocade(config)#deny icmp any any router-advertisement
Brocade(config)#deny icmp any any router-solicitation
Brocade(config)#permit ipv6 any any
Disabling IPv6 on a Layer 2 switch
IPv6 is enabled by default in the Layer 2 switch code. If desired, you can disable IPv6 on a global
basis on a device running the switch code. To do so, enter the following command at the Global
CONFIG level of the CLI.
Brocade(config)#no ipv6 enable
Syntax: no ipv6 enable
To re-enable IPv6 after it has been disabled, enter ipv6 enable.
NOTE
IPv6 is disabled by default in the router code and must be configured on each interface that will
support IPv6.
Static IPv6 route configuration
NOTE
Static IPv6 route configuration is supported only with the IPv6 Layer 3 PROM and the full Layer 3
image.
You can configure a static IPv6 route to be redistributed into a routing protocol, but you cannot
redistribute routes learned by a routing protocol into the static IPv6 routing table.
NOTE
The maximum IPv6 static routes supported on an ICX 6450 device is 1070.
Before configuring a static IPv6 route, you must enable the forwarding of IPv6 traffic on the Layer 3
switch using the ipv6 unicast-routing command and enable IPv6 on at least one interface by
configuring an IPv6 address or explicitly enabling IPv6 on that interface. For more information on
performing these configuration tasks, refer to “Configuring IPv4 and IPv6 protocol stacks” on
page 365.
Configuring a static IPv6 route
To configure a static IPv6 route for a destination network with the prefix 8eff::0/32, a next-hop
gateway with the global address 4fee:2343:0:ee44::1, and an administrative distance of 110,
enter the following command.