[strongSwan] StrongSwan VPN

Dragos Ilie dragos.ilie at bth.se
Thu Sep 3 13:59:02 CEST 2015


You can try running tcpdump or Wireshark on the host with Strongswan. If
you see ESP packets spaced in time approximately as the ping ICMP
packets. If all you see is plaintext ICMP, than your ping is not
forwarded over the tunnel.

Best regards,

On 3/9/15 10:34 , Bassem Mettichi wrote:
> Hello,
> I wish someone could answer my question.
> I have established a VPN with another campany, they have a gateawy
> with public IP and the subnet, the network behind the gateway contains
> public IPs not private IPs ( 197.....),
> The VPN is UP but i can't ping their network behind their gateway.
> Please is there any way to know that my ping request is going inside
> the VPN Tunnel and not outside the Tunnel?
> Iam using Strongswan with Centos 6.5, i have done traceroute ip of the
> campany but it didn't give any thing, i need just a commant or any
> thing to be sure that my ping request is going inside the VPN.
> I hope you could answer my question.
> Best Regards
> Mettichi Bassem
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> Users at lists.strongswan.org
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Dr. Dragos Ilie, dragos.ilie at bth.se
Assistant Professor of Telecommunication Systems
Blekinge Institute of Technology
Department of Communication Systems
SE-371 79 Karlskrona, Sweden

Phone:   +46 455 38 58 71
E-mail:  dragos.ilie at bth.se
Web:     http://www.bth.se/com/dil

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