Owner's Manual

644 | Chapter 21. IPv6 Unicast Routing
NETGEAR 8800 User Manual
• Statically, by way of routes entered by the administrator:
• Default routes, configured by the administrator
• Locally, by way of interface addresses assigned to the system
• By other static routes, as configured by the administrator
Once routes are populated using the above method, IPv6 forwarding needs to be enabled on
the VLAN using the following command:
enable ipforwarding ipv6 {vlan <vlan_name> | tunnel <tunnel-name> | vr
<vr_name>}
Note: If you define a default route and subsequently delete the VLAN on
the subnet associated with the default route, the invalid default route
entry remains. You must manually delete the configured default
route.
Dynamic Routes
Dynamic routes are typically learned by way of RIPng or OSPFv3, and routers that use these
protocols use advertisements to exchange information in their routing tables. Using dynamic
routes, the routing table contains only networks that are reachable.
Dynamic routes are aged out of the table when an update for the network is not received for a
period of time, as determined by the routing protocol. For details on the configuration and
behavior of IPv6 dynamic routes, see
Chapter 23, RIPng and Chapter 25, OSPFv3.
Static Routes
Static routes are manually entered into the routing table. Static routes are used to reach
networks not advertised by routers. Static IPv6 routes can be created using the following
command:
configure iproute add <ipv6Netmask> [<ipv6Gateway> | <ipv6ScopedGateway>]
{<metric>} {vr <vrname>} {multicast | multicast-only | unicast | unicast-only}
Similar to IPv4 Unicast, IPv6 default and blackhole routes can also be configured. The IPv6
gateway can be a global address or a scoped link-local address of an adjacent router.
Static routes can also be used for security reasons, to control which routes you want
advertised by the router. You configure, if you want all static routes to be advertised, using
one of the following commands:
enable ripng export [direct | ospfv3 | ospfv3-extern1 | ospfv3-extern2 |
ospfv3-inter | ospfv3-intra | static | isis | isis-level-1|
isis-level-1-external | isis-level-2| isis-level-2-external] [cost <number>
{tag <number>} | policy <policy-name>]

or 
disable ripng export [direct | ospfv3 | ospfv3-extern1 | ospfv3-extern2 |