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How to Verify Traffic is Using the IPSec Tunnel

notify.sina
Hi!

I am using a Sophos UTM ASG220 and I wonder if it is possible to view the traffic that is passing through an IPSec tunnel to make sure it is going where its' supposed to.

Please is this possible?

Thanks!


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  • 0
    Hi,

    With TCPDump, you should be able to see the traffic on the Internal interfaces on each end, but the external interfaces should only show encrypted IPSEC traffic.

    I'm not sure why you're seeing ARP traffic for remote networks; perhaps you have a configuration problem.

    I don't really know what you mean by Tunnel Peer and Tunnel Host; perhaps a diagram would be helpful.

    Barry
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  • 0
    Hi,

    With TCPDump, you should be able to see the traffic on the Internal interfaces on each end, but the external interfaces should only show encrypted IPSEC traffic.

    I'm not sure why you're seeing ARP traffic for remote networks; perhaps you have a configuration problem.

    I don't really know what you mean by Tunnel Peer and Tunnel Host; perhaps a diagram would be helpful.

    Barry
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