3Com Switch 8800 Advanced Software V5 Configuration Guide

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IPV6 STATIC ROUTING
CONFIGURATION
When configuring IPv6 Static Routing, go to these sections for information you are
interested in:
■ “Introduction to IPv6 Static Routing” on page 265
■ “Configuring an IPv6 Static Route” on page 265
■ “Displaying and Maintaining IPv6 Static Routes” on page 266
■ “IPv6 Static Routing Configuration Example” on page 266
n
The term "router" in this document refers to either a router in a generic sense or
an Ethernet switch running routing protocols.
Introduction to IPv6
Static Routing
Static routes are special routes that are manually configured by network
administrators. They work well in simple networks. Configuring and using them
properly can improve the performance of networks and guarantee enough
bandwidth for important applications.
However, static routes also have shortcomings: any topology changes could result
in unavailable routes, requiring the network administrator to manually configure
and modify the static routes.
Features of IPv6 Static
Routes
Similar to IPv4 static routes, IPv6 static routes work well in simple IPv6 network
environments.
Their major difference lies in the destination and next hop addresses. IPv6 static
routes 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 address
of an IPv6 packet does not match any entry in the routing table, this default route
will be used to forward the packet.
Configuring an IPv6
Static Route
In small IPv6 networks, IPv6 static routes can be used to forward packets. In
comparison to dynamic routes, it helps to save network bandwidth.
Configuration
prerequisites
■ 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