1:1 BINAT/NAT IPSEC

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hancke

Newbie
Posts: 6
Karma: 1

1:1 BINAT/NAT IPSEC

« on: March 08, 2019, 09:33:05 pm »

I'm having issues getting 1:1 NAT to work consistently in use with an IPSEC tunnel. The NAT'd IP will not trigger the IPSEC but I can ping through the tunnel if I start it manually under Status Overview.

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mimugmail

Hero Member
Posts: 6767
Karma: 494

Re: 1:1 BINAT/NAT IPSEC

« Reply #1 on: March 09, 2019, 07:13:25 am »

I'd rather look why the VPN is not always on?

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hancke

Newbie
Posts: 6
Karma: 1

Re: 1:1 BINAT/NAT IPSEC

« Reply #2 on: March 10, 2019, 04:25:50 pm »

My guess is the 1:1 NAT is not working correctly and interesting traffic never hits the tunnel to bring it up.

Add:My translated NAT IP is an IP within the WAN subnet. Not sure if that matters.

« Last Edit: March 10, 2019, 04:49:12 pm by hancke »

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hancke

Newbie
Posts: 6
Karma: 1

Re: 1:1 BINAT/NAT IPSEC

« Reply #3 on: March 10, 2019, 05:43:35 pm »

Deleted the IPSEC and 1:1 NAT entries and started over. I can get the tunnel up with one of two phase 2 entries but not both. It appears that PAT is not working on 1:1 NAT.

I can make this same config work on a Sonicwall or pfsense. Seems Opnsense does NAT on IPSEC a little different.

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