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Sophos XG - VPN Tunnel - SSL Connect - Broken Pipe

Dear all,

i´ve been struggling to get a Sophos XG up and running for some time. Most of the things do work now, there is only one thing i seem to be unable to solve, do you have some idea how to solve this:

a) ipsec site 2 site vpn tunnel to some remote location defined and established

b) http / https / rdp connects to this remote locations internal network are up and running

c) as soon as i try to open a ssh connection from remote location to local one or from local one to remote, the ssh client exits with a broken pipe error

d) if i shutdown the sophos and use the old kerio appliance instead, the ssh connection works immediately

e) if i use the sophos and open a separate vpn connect on the client to the target system, the ssh connection works as well, so i suppose it might be some filtering / rewriting issue on the sophos

what i don´t understand: why is sophos inspecting / filtering the ssh vpn traffic even when the following settings are applied:

  • firewall is defined without any filtering / protection
  • intrusion prevention is off
  • advanced threat protection & security heartbeat are off



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