Bug #12023: Mobile IPsec NAT/BINAT entries missing from firewall rules - pfSense - pfSense bugtracker

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Bug #12023

closed

Mobile IPsec NAT/BINAT entries missing from firewall rules

Added by Chris Linstruth over 3 years ago. Updated about 3 years ago.

Status:

Resolved

Priority:

Normal

Assignee:

Viktor Gurov

Category:

IPsec

Target version:

2.6.0

Start date:

06/10/2021

Due date:

% Done:

100%

Estimated time:

Plus Target Version:

22.01

Release Notes:

Default

Affected Version:

Affected Architecture:

Description

Adding a NAT or BINAT to a mobile IPsec configuration does not work.

The nat rules are not added to the pf configuration.

This is true for 1:1 and Many:1

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Updated by Jim Pingle over 3 years ago

Target version set to 2.6.0
Plus Target Version set to 21.09

Noting here what I mentioned on Slack:

This is likely due to the fact that the "remote" network on mobile P2s is from the mobile settings and not defined inside the P2.
The logic building the 1:1 NAT rules may be skipping these either because the remote is empty, or because it's mobile, or both.
This could work for well-defined mobile address pools (maybe not per-user pools, though), but definitely isn't viable for RADIUS-assigned addresses since there is no way for the firewall to know what those are.

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Updated by Chris Linstruth over 3 years ago

Documenting a possible workaround:

If you have the following Mobile IPsec configuration:

Mobile Virtual Address Pool: 172.16.17.0/24
Mobile Phase 2 Local Network: 192.168.1.0/24
Mobile Phase 2 BINAT Network: 10.11.12.0/24

You can leave that configuration in IPsec (to make the traffic interesting to IPsec) and add the following 1:1 NAT entry in Firewall > NAT, 1:1

Interface: IPsec
External Subnet IP: 10.11.12.0
Internal network: 192.168.1.0/24
Destination network: 172.16.17.0/24

That will give you this in the rule set:

binat on enc0 inet from 192.168.1.0/24 to 172.16.17.0/24 -> 10.11.12.0/24

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Updated by Viktor Gurov over 3 years ago

fix:
https://gitlab.netgate.com/pfSense/pfSense/-/merge_requests/283

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Updated by Jim Pingle over 3 years ago

Status changed from New to Pull Request Review

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Updated by Renato Botelho over 3 years ago

Status changed from Pull Request Review to Feedback
Assignee set to Viktor Gurov

PR has been merged. Thanks!

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Updated by Viktor Gurov over 3 years ago

% Done changed from 0 to 100

Applied in changeset 99f957fe21d514f9b2bb945fb07c0277df210d03.

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Updated by Danilo Zrenjanin over 3 years ago

Status changed from Feedback to Resolved

Tested on the:

2.6.0-DEVELOPMENT (amd64)
built on Mon Jul 26 14:27:42 EDT 2021
FreeBSD 12.2-STABLE

Works for both 1:1 and Many:1.

Ticket resolved.

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Updated by Jim Pingle about 3 years ago

Subject changed from Mobile IPsec NAT/BINAT rules not inserted into pf rule set to Mobile IPsec NAT/BINAT entries missing from firewall rules

Updating subject for release notes.

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Updated by Jim Pingle about 3 years ago

Plus Target Version changed from 21.09 to 22.01

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Bug #12023

Mobile IPsec NAT/BINAT entries missing from firewall rules

Updated by Jim Pingle over 3 years ago

Updated by Chris Linstruth over 3 years ago

Updated by Viktor Gurov over 3 years ago

Updated by Jim Pingle over 3 years ago

Updated by Renato Botelho over 3 years ago

Updated by Viktor Gurov over 3 years ago

Updated by Danilo Zrenjanin over 3 years ago

Updated by Jim Pingle about 3 years ago

Updated by Jim Pingle about 3 years ago