IPsec tunnel between pfsense and Zywall

[deeztek]

I'm trying to setup an IPsec tunnel between a pfsense box (2.1.2-RELEASE (amd64)) and a Zyxel zywall USG box. I have triple-checked the settings but I keep getting the following error in the IPsec status on pfsense:

Apr 28 11:28:42 racoon: [vpn]: [74.xxx.xxx.xxx] ERROR: phase1 negotiation failed.
Apr 28 11:28:42 racoon: [vpn]: [74.xxx.xxx.xxx] ERROR: failed to pre-process ph1 packet [Check Phase 1 settings, lifetime, algorithm] (side: 1, status 1).
Apr 28 11:28:42 racoon: [vpn]: [[74.xxx.xxx.xxx] ERROR: failed to get valid proposal.
Apr 28 11:28:42 racoon: ERROR: no suitable proposal found.
Apr 28 11:28:42 racoon: [vpn]: [74.xxx.xxx.xxx] INFO: Selected NAT-T version: RFC 3947
Apr 28 11:28:42 racoon: INFO: received Vendor ID: DPD
Apr 28 11:28:42 racoon: INFO: received Vendor ID: RFC 3947
Apr 28 11:28:42 racoon: INFO: received Vendor ID: draft-ietf-ipsec-nat-t-ike-03
Apr 28 11:28:42 racoon: INFO: received Vendor ID: draft-ietf-ipsec-nat-t-ike-02
Apr 28 11:28:42 racoon: INFO: received Vendor ID: draft-ietf-ipsec-nat-t-ike-02
Apr 28 11:28:42 racoon: INFO: begin Identity Protection mode.3

I have verified that all the settings are the same on both sides but it just doesn't work.

Which looks like the exact same issue on this thread which is has gone unanswered:

https://forum.pfsense.org/index.php?topic=69097.msg377884

I would appreciate some help on this

Thanks

[mix_room]

Check your settings again. The ZyWall and the pfSense are compatible, I have a tunnel working.