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With iptables -L -n -v, you can get the number of times each firewall rule has been applied, which is very useful in debugging. I'd like to know if there's a similar way to find out how many times a network route has been used. I'm mostly asking about Linux and Windows solutions, but any platforms' solutions to this would be interesting.

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  • Added Windows to tags, for Windows guru to notice the question
    – SaveTheRbtz
    Oct 25, 2009 at 20:07

3 Answers 3

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Try

route -neeC

and look at the "Use" column. man route says this is the count of lookups for the route.

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  • Thanks, this looks useful. I'm not entirely sure that a lookup against a route is the same thing as a final decision to use that route AFTER conducting a lookup. Is this safe to assume?
    – Lee B
    Oct 26, 2009 at 20:34
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    Fwiw, this 2009 answer will not work anymore (empty result) on linux >= 3.6 (~2012): ipv4: Delete routing cache
    – A.B
    Nov 27, 2019 at 19:40
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FreeBSD: 

netstat -rn

Linux:

netstat -rneC

Windows:
I think something can be done via netsh

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I don't know of a way to get this information directly, but it would be relatively straightforward with a set of empty rules in iptables that match up with the rules in the routing table.

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