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Old 12-18-2010, 12:20 AM   #1
Naman Mishra
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Registered: Dec 2010
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Why can't i traceroute a host outside my LAN ?


naman@naman-laptop:~$ traceroute google.co.in
google.co.in: Name or service not known
Cannot handle "host" cmdline arg `google.co.in' on position 1 (argc 1)

Then I tracked the IP address of google.com on http://www.ip-adress.com/ip_trace and tried

naman@naman-laptop:~$ traceroute 74.125.77.99
traceroute to 74.125.77.99 (74.125.77.99), 30 hops max, 40 byte packets
connect: Network is unreachable

I have to use my college proxy server to connect to the Internet. When I traceroute to a host within the LAN there is no problem.

What should I do to be able to traceroute to a host outside my local network?
 
Old 12-18-2010, 03:59 AM   #2
jamescondron
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Registered: Jul 2007
Location: Scunthorpe, UK
Distribution: Ubuntu 8.10; Gentoo; Debian Lenny
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Are you able to connect to the outside world at all on this laptop? It is possible that your router is disallowing ICMP echo requests to the outside world; in which case either allow it or ask your admin to do so.
 
Old 12-19-2010, 06:32 AM   #3
ilvista
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Registered: Nov 2010
Location: Ghazaouet
Distribution: Fedora OpenSuse
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since you're using a proxy ,you can't use traceroute ,because the ICMP request is disabled on the proxy.this is how it works
 
  


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