[Openswan Users] Openswan to Sonicwall - IKE config incorrect

Lawrence Manning lawrence.manning at smoothwall.net
Thu Mar 12 13:32:33 EDT 2009

On 12 Mar 2009, at 17:24, Peter Butler wrote:

> Ah, I think NAT might be the problem. According to this, my network
> provider (Vodafone UK) uses NAT and port address translation:
> http://forum.vodafone.co.uk/index.php?showtopic=7813
> Does this mean I won't be able to use Openswan (or any other IPSec
> client) with this network provider?

NAT-T mode IPSec (network packets encapsulated in UDP packets as  
opposed to ESP) should pass through vodafone's NATing gateway just  

Openswan (and other 'swans) support NAT-T, assuming the config as  

Hope that helps,


Lawrence Manning
Lead Developer
Smoothwall Ltd. -  http://www.smoothwall.net/

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