On Tue, Apr 05, 2011 at 07:46:32PM -0400, Tom H wrote: > In the case of traceroute, there shouldn't be any AAAA DNS requests > when specifying ipv4 transport ("-4"). Umm, no. The transport protocol is irrelevant to the query. You can make AAAA queries over IPv4. Indeed I do that all the time. -- rgds Stephen