Maybe tomorrow I'll look into pcap. Right now, though, I do have this to share. I had turned on dhclient-script.debug and here was its contents (I'm fudging these domain names):
Thu Jan 24 22:17:16 EST 2013: entering /sbin, dumping variables. reason='PREINIT' interface='eth0' -------------------------- Thu Jan 24 22:17:21 EST 2013: entering /sbin, dumping variables. reason='BOUND' interface='eth0' new_ip_address='192.168.0.107' new_network_number='192.168.0.0' new_subnet_mask='255.255.255.0' new_broadcast_address='192.168.0.255' new_routers='192.168.0.1' new_domain_name='my.comhr.remote.net' new_domain_name_servers='192.168.0.1' old_ip_address='192.168.0.107' old_network_number='192.168.0.0' old_subnet_mask='255.255.255.0' old_broadcast_address='192.168.0.255' old_routers='192.168.0.1' old_domain_name='my.comhr.remote.net' old_domain_name_servers='192.168.0.1' -------------------------- Based on this am I right to assume it's something inside dhclient and not part of a Debian-contributed script in /etc/dhcp ? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1104675 Title: Bad handling of multiple domainname options To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1104675/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs