Topic: Icmp checksum is wrong

[s b]

Server is 5.6 running in Server mode (not gateway), when I try to do a traceroute, I get "Icmp checksum is wrong". Doesn't stop the server from working. But I suspect it may cause slowdowns. Still get smtp, pops fine, squid is fine. All behind a firewall..

Command like traceroute thissite.com yields

14  dcr2-as0-0.SantaClara.cw.net (208.172.147.65)  210.869 msIcmp checksum is wrong
  212.204 msIcmp checksum is wrong
  211.086 ms
Icmp checksum is wrong
15  bhr1-pos-0-0.SantaClarasc8.cw.net (208.172.156.198)  213.342 msIcmp checksum is wrong
  204.782 msIcmp checksum is wrong
  214.029 ms
Icmp checksum is wrong
16  csr1-ve240.SantaClarasc8.cw.net (66.35.194.34)  212.120 msIcmp checksum is wrong
  205.357 msIcmp checksum is wrong
  211.582 ms

Any ideas apreciated