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-   -   Using Traceroute (https://www.linuxquestions.org/questions/linux-networking-3/using-traceroute-199026/)

lapthorn 06-29-2004 06:35 AM
Using Traceroute
 
I have noticed a problem using traceroute this morning. When I attempt to traceroute to www.google.com I get the following errors:

msIcmp checksum is wrong

If I use a program like 'mtr' everything looks fine?

Can anyone help me find out what the problem is. I don't think I have changed anything in my network configuration, could it be my ISP??

peter_robb 06-29-2004 03:56 PM
You would get this if a next step router was "mangling" your icmp packets..

Same problem on other websites?

lapthorn 06-30-2004 01:28 AM
Yes, it appears to be all websites, I attempted a traceroute to my ISP's DNS server and it had the same problem. Using traceroute on LAN addresses doesn't appear to cause the same problem.

I am sure that nothing has changed within my router!!!!!

peter_robb 06-30-2004 05:39 AM
Is there any difference between firewall on/off?


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