Why do all my tracert end in "Request timed out"?

[TJones2]

I've run a bunch of tracert searches and they all end with about ten "Request timed out" replied then "Destination net unreachable". Yet I can reach all of them in my browser. Any ideas?

 

[kevnich2]

Nowadays that's normal. A tracert sends an ICMP to each hop that it goes through. Some router's don't do respond to ICMP's and so they time out. The last few hops that do this because you've most likely hit the firewall and that's when ICMP traffic will stop. Only web traffic is allowed through at that point.

 

[TJones2]

Thanks.

 

[unokitty]

If you have access to Wireshark, or similar tool, you can capture your tracert session. Then, you could examine the ICMP packets where it is timing out. The ICMP packet type will give you some insight into what you have encountered. You might want to look at:

http://onlamp.com/bsd/2001/04/04/FreeBSD_Basics.html

Uno