IPSEC between PFSense 2.3.1 and Zyxel USG 1100 Router
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Hi all,
We want to deploy IPSec VPN Tunnel between PFSense and Zyxel UGS 1100.
After many hours of tests, we can't connect Tunnels.IPSec Logs
Nov 28 14:09:52 charon 15[IKE] <con1000|1>IKE_SA con1000[1] state change: CONNECTING => DESTROYING
Nov 28 14:09:52 charon 15[IKE] <con1000|1>received AUTHENTICATION_FAILED error notify
Nov 28 14:09:52 charon 15[ENC] <con1000|1>parsed INFORMATIONAL_V1 request 925911566 [ N(AUTH_FAILED) ]
Nov 28 14:09:52 charon 15[NET] <con1000|1>received packet: from 31.222.199.115[500] to 109.7.30.198[500] (91 bytes)
Nov 28 14:09:52 charon 15[NET] <con1000|1>sending packet: from 109.7.30.198[500] to 31.222.199.115[500] (164 bytes)</con1000|1></con1000|1></con1000|1></con1000|1></con1000|1>According to https://doc.pfsense.org/index.php/IPsec_Troubleshooting it seems to be from the negotiation mode (main / aggressive).
We change all configuration parameters between the two routers without success.
I can publish all the configuration parameters we used, if wanted.
Is there anybody who knows this error and how to troubleshoot that situation ?