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IPsec OpenBSD: Difference between revisions

1,351 bytes added ,  19 November 2021
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<indicator name="Tunnels">[[File:Menu-IPsec.svg|link=:Category:FireBrick_IPsecFireBrick IPsec|30px|Back up to the FireBrick IPsec Tunnels Category Page]]</indicator>
 
== Overview and requirements ==
coming soon
 
This has been tested using pre-shared keys between a Firebrick FB2700 and OpenBSD 5.7-RELEASE.
 
We had to add some workarounds to the FireBrick IPsec code to cope with some protocol negotiation issues with OpenBSD's IKEv2 implementation. We are in talks with the OpenBSD developers about which end is doing things correctly, but for the moment you will need a FireBrick with firmware version 1.36.032 or newer for this to work.
[[Category:FireBrick_IPsec|OpenBSD]]
 
In this example, IP addresses are assigned as follows:
* 192.0.2.1 FireBrick FB2700
* 192.0.2.2 OpenBSD machine
* 198.51.100.0/24 LAN of machines behind FireBrick
* 203.0.113.0/24 LAN of machines behind OpenBSD
 
== FireBrick configuration ==
 
<SyntaxHighlight lang="xml">
<ipsec-ike allow="192.0.2.2">
<connection name="openbsdtest" local-ip="192.0.2.1" peer-ips="192.0.2.2" graph="openbsd ipsec"
routes="203.0.113.0/24" local-ID="192.0.2.1"
peer-ID="192.0.2.2" auth-method="Secret" secret="your PSK here"/>
</ipsec-ike>
</SyntaxHighlight>
 
== OpenBSD configuration ==
 
/etc/iked.conf :
 
<SyntaxHighlight lang="aconf">
ikev2 "tofirebrick" active \
esp \
from 203.0.113.0/24 to 198.51.100.0/24 \
local 192.0.2.2 peer 192.0.2.1 \
ikesa group modp2048 \
srcid 192.0.2.2 dstid 192.0.2.1 \
psk "your PSK here"
</SyntaxHighlight>
 
[[Category:FireBrick_IPsecFireBrick IPsec|OpenBSD]]
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