> traceroute can't get to that IP address, so I'm pretty sure the corporate > firewall is doing its job.
traceroute failure just means that someone is not passing icmp traffic. the only thing you know is icmp traffic won't pass. here's a dirty trick you can do with plan 9 traceroute: ; ip/traceroute /net/tcp!minooka.coraid.com trying /net/tcp!12.51.113.6!32767 round trip times in µs low avg high -------------------------- 192.168.0.64 175 243 376 192.168.1.254 320 386 509 65.14.248.28 19621 20117 20711 74.253.143.53 21151 22002 22685 205.152.99.98 21649 22016 22468 65.83.238.74 21693 22098 22641 65.83.238.194 22661 23113 23896 12.122.140.198 23143 23939 24520 cr2.attga.ip.att.net 12.122.140.45 169904 201516 222315 gar19.attga.ip.att.net 12.87.45.86 26855 27417 28069 12.51.113.6 26376 26949 27493 by the way, plan 9 dns query tends to do poorly with rfc2672-style reverse ips. it tends to quit on the cname. - erik