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Linux - Networking This forum is for any issue related to networks or networking.
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Old 06-29-2004, 06:35 AM   #1
lapthorn
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Registered: Jul 2003
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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??
 
Old 06-29-2004, 03:56 PM   #2
peter_robb
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You would get this if a next step router was "mangling" your icmp packets..

Same problem on other websites?
 
Old 06-30-2004, 01:28 AM   #3
lapthorn
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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!!!!!
 
Old 06-30-2004, 05:39 AM   #4
peter_robb
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Is there any difference between firewall on/off?
 
  


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