- Document $ipv6_cpe_wanif. - Emphasize $ipv6_enable and $ipv6_prefer are deprecated. - Add more detail descriptions about $ipv6_activate_all_interfaces. - Add some more examples of $ifconfig_IF_ipv6. - rtsold(8) and rtadvd(8) can be used even when ipv6_gateway_enable=NO now.
- Document $ipv6_cpe_wanif.
- Emphasize $ipv6_enable and $ipv6_prefer are deprecated.
- Add more detail descriptions about $ipv6_activate_all_interfaces.
- Add some more examples of $ifconfig_IF_ipv6.
- rtsold(8) and rtadvd(8) can be used even when ipv6_gateway_enable=NO now.

Approved by:	re (kib)

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase