| just to document that I got the desired effect (using dhcpv6 to update dns while using slaac address allocation), by adding a whitespace: send<space><space>fqdn.fqdn<space>”machine.example.com”; as that broke the string matcher looking for ‘send<space>fqdn.’. I don’t know whether I’ve stumbled up against a bug or not as I don’t know the standards well enough, but I thought it worth noting a workaround for others deploying ipv6. tim |