66 IPV6 STATIC ROUTINGCONFIGURATIONWhen configuring IPv6 Static Routing, go to these sections for information you areinterested in:■ “Introduction to IPv6 Static Routing” on page 1081■ “Configuring an IPv6 Static Route” on page 1081■ “Displaying and Maintaining IPv6 Static Routes” on page 1082■ “IPv6 Static Routing Configuration Example” on page 1082Introduction to IPv6Static RoutingStatic routes are special routes that are manually configured by networkadministrators. They work well in simple networks. Configuring and using themproperly can improve the performance of networks and guarantee enoughbandwidth for important applications.However, static routes also have shortcomings: any topology changes could resultin unavailable routes, requiring the network administrator to manually configureand modify the static routes.Features of IPv6 StaticRoutesSimilar to IPv4 static routes, IPv6 static routes work well in simple IPv6 networkenvironments.Their major difference lies in the destination and next hop addresses. IPv6 staticroutes use IPv6 addresses whereas IPv4 static routes use IPv4 addresses. Currently,IPv6 static routes do not support VPN instance.Default IPv6 Route The IPv6 static route that has the destination address configured as “::/0”(indicating a prefix length of 0) is the default IPv6 route. If the destination addressof an IPv6 packet does not match any entry in the routing table, this default routewill be used to forward the packet.Configuring an IPv6Static RouteIn small IPv6 networks, IPv6 static routes can be used to forward packets. Incomparison to dynamic routes, it helps to save network bandwidth.Configurationprerequisites■ Configuring parameters for the related interfaces■ Configuring link layer attributes for the related interfaces■ Enabling IPv6 packet forwarding■ Ensuring that the neighboring nodes are IPv6 reachable
