32 IPV6 STATIC ROUTINGCONFIGURATIONn The term “router” in this document refers to a Layer 3 switch running routingprotocols.Introduction 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.Default IPv6 Route The IPv6 static route that has the destination address configured as ::/0 (indicatinga prefix length of 0) is the default IPv6 route. If the destination address of an IPv6packet does not match any entry in the routing table, this default route will beused 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■ Enabling IPv6 packet forwarding■ Ensuring that the neighboring nodes are IPv6 reachableConfiguring an IPv6Static RouteFollow these steps to configure an IPv6 static route:To do… Use the commands... RemarksEnter system view System-view -Configure an IPv6static routeipv6 route-static ipv6-addressprefix-length [ interface-typeinterface-number ] nexthop-address[ preference preference-value ]RequiredThe default preference of IPv6static routes is 60.
