[strongSwan] Tunnels with dynamic IP and another route issue

Noel Kuntze noel.kuntze+strongswan-users-ml at thermi.consulting
Sat Apr 29 02:49:48 CEST 2017

Hello Dusan,

On 29.04.2017 02:25, Dusan Ilic wrote:
> Hi Noel,
> Okey, if I don't set "left" and initiate the connection it takes the wrong route (multiple WAN-interfaces) and the remote peer don't expect that source IP. Probably works better if the remote peer is initiating connection instead.
> If I set "left=%local.example" and "right" / "rightid" as you suggest I get the following output n logfile:
> Apr 29 00:10:51 R6250 daemon.info charon: 10[IKE] tried 1 shared key for 'local.example' - '137.135.x.x', but MAC mismatched
> Apr 29 00:10:51 R6250 daemon.info charon: 10[ENC] generating INFORMATIONAL request 2 [ N(AUTH_FAILED) ]
> If i fiddle in ipsec.secrets a bit, i get this instead:
> authentication of '137.135.x.x' with pre-shared key successful
> constraint check failed: identity 'remote.example' required
> selected peer config 'site2site' inacceptable: constraint checking failed
> no alternative config found
Alright. Try the following

remote.example : PSK "PSKGOESHERE"

Do it vice versa on the remote peer.

Kind regards,

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