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Enable port mirroring on one interface of Sophos XG

Hello everybody,

we are testing a new SIEM and we don't have a managed switch. We would like to use one interface of Sophos XG for mirror all the traffic that passes through to our SIEM. Is this possible?

Regards,

Jose

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0 lferrara over 8 years ago

Jose,

How is configured your XG? Bridge or routing mode?

I think that if it is working as bridge, adding a third nic will do the trick.

Anyway the best way to mirror traffic is to use span feature on switch. Strange that your switch is not span capable.

Regards
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0 Greg CT over 8 years ago in reply to lferrara

You could do a tcpdump with the IP of your SIEM server and the grab the pcap and analyze it that way. Here is an excellent guide written by Emile:

https://community.sophos.com/products/xg-firewall/f/network-and-routing/73466/how-to-do-a-tcpdump-filedump-and-retrieve-it-by-ftp
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