IPv6 routing

Both replaceable and non-replaceable IPv6 static routes are configured for the main route table by using BEGINROUTES profile statements. Both replaceable and non-replaceable IPv6 static routes can also be configured for policy-based route tables. Policy-based routing is configured by using one of the following options:

• Use the IBM® Configuration Assistant for z/OS® Communications Server.
• Manually create the policy-based routing configuration files and code the required policy statements.

For more information about these two configuration options for configuring policy-based routing, see z/OS Communications Server: IP Configuration Guide.

Dynamic routes for IPv6 are learned in the following ways:

By router discovery

For policy-based route tables, the configured policy controls which IPv6 router advertisement routes are added to each table.

From packets that are redirected by ICMPv6

From dynamic routing protocols

For policy-based route tables, the configured policy controls which OSPF and RIP routes are added to each table.

Replaceable static routes can be replaced by dynamic routes. If a replaceable static route is replaced by a dynamic route, and that dynamic route is later deleted, the replaceable static route is readded.