> I wasn't under the impression that SOHO routers normally have DHCPv6 enabled by default.

The fellow I replied to indicated that running a local DNS server on one's LAN "sounds crazy".

My commentary was intended to indicate that it's very common in SOHO networks to already be running a DNS server that automatically adds hostname->address mappings of DHCP clients on that network. It also mentioned that DHCPv6 support is supported by the combined DHCP+DNS daemon used by many (most?) SOHO routers.

My commentary was not intended to indicate that DHCPv6 support is on by default on many or most SOHO routers, only that it's likely to be supported, and that -if supported- it is very, very likely to put hostname->AAAA mappings of DHCPv6 clients into its DNS server, just as it adds hostname->A mappings for DHCPv4 clients.