Also affects guarddog, so definitely looks like an iptables 1.3.5 issue. (was working previously)
$sudo /etc/init.d/guarddog restart Setting up guarddog firewall...iptables v1.3.5: Unknown arg `--icmp-type' Try `iptables -h' or 'iptables --help' for more information. ... -- Unknown arg `--icmp-type' https://launchpad.net/bugs/66106 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs