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Capture messages of remote cisco 7609 router interface on Linux

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Hi, As the title says, i need to capture messages coming on a interface in cisco router from my linux system, IS there anyway? What configuration is required in cisco router

asked 18 May '13, 07:35

Chandra%20Sekhar's gravatar image

Chandra Sekhar
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One Answer:

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I'm pretty sure your Linux system is connected to the 7609 via a switch (either separate access switch or directly to a switch blade in the 7609). So, you need to configure a mirror/span port on that switch (or use a physical TAP).

http://wiki.wireshark.org/CaptureSetup/Ethernet#Capture_using_a_monitor_mode_of_the_switch

If you want to capture 'remote' traffic take a look at RSPAN.

http://www.cisco.com/en/US/docs/routers/7600/ios/15S/configuration/guide/span.html

Another method would be a GRE tunnel to redirect the traffic

http://www.infosecwriters.com/texts.php?op=display&id=41

Regards
Kurt

answered 20 May '13, 03:20

Kurt%20Knochner's gravatar image

Kurt Knochner ♦
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accept rate: 15%