In this section we describe a configuration example for BSD to deploy IPv6 networking across a number of IPv6 links on an enterprise (in this case, eight links), for a scenario similar to the one described above. Here the precise configuration may of course vary depending on the existing site VLAN deployment. This section highlights that the VLAN configuration must be manually configured; the support is not “automatic”.

In this example, the configuration is for an IPv6 BSD router connected directly to a site’s external IPv6 access router. The BSD router has one interface (dc0) towards the site IPv6access router, and three interfaces (dc1, dc2, dc3) over which the internal routing is performed (the number of interfaces can be varied, three are used here to distribute the traffic load). The IPv6 documentation prefix (2001:db8::/32) is used in the example.