[vpn-help] Cannot establish SA between gateway and client

[Tony Zhou]

Hi all,

I am trying to setup an IKEv1 tunnel between my gateway and client. The 
gateway is running Strongswan 5.1.2 on Ubuntu and client is Shrew 2.2.2 
for Windows. It appears that Shrew is able to finish phase 1 (tunnel 
enabled in the connection status window) but Security Associations could 
never be established (the number of failures keep increasing). However, 
another iOS device behind the same router can connect to the gateway 
without any problems. Clients were tried on Windows XP, 7 and 8.1 but 
none worked.

Attachment is the log of Shrew VPN Client, help is much appreciated.

Thanks,
TZ
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