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This is in unix environment. I have multiple routes in a host (visible with 'ip route show' command). If I am pinging an address, how can I find out which gateway was used to route the tracffic?

I tried using traceroute command, but it does not show the immediate gateway.

From below output, is my default gateway.

# ip r l dev front_eth1  proto kernel  scope link  src dev bond0  proto kernel  scope link  src
default via dev front_eth1  proto gated

When I do traceroute to an external address, the gateway used (default gateway is not shown in output.

# traceroute -n -I
traceroute to (, 30 hops max, 40 byte packets
 1  0.507 ms  1.008 ms  1.017 ms
 2  0.228 ms  0.233 ms  0.234 ms

Is there any option to view the same information as given by traceroute command, including the gateway used for routing?

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migrated from Mar 12 '12 at 8:59

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1 Answer 1

up vote 14 down vote accepted

You can use the ip route get <address> command to ask the kernel to report the route it would use to send a packet to the specified address:

$ ip route get via dev eth0  src 
$ is my default route. If I ask for an address that would not go over the default route:

$ ip route get dev eth0  src 
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Thaks a lot. :) That solves the issue. –  divya Mar 12 '12 at 8:40

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