[Openswan Users]

Paul Wouters paul at xelerance.com
Wed Jul 13 02:59:29 CEST 2005

On Tue, 12 Jul 2005, Foren wrote:

> the error above I had it since I use the ipsec modules from openswan-2.3.1. 
> erlier I have used the af_key with the native ipsec-stack from kernel-2.6.
> Now, I get no error, the tunnel commes up and the l2tpd does nothing.
> The l2tpd-logfile don't says me anything, no entry.
> I think it's not the tunnel config, because this is working.

What does 'ipsec verify' say?

These problems most likely are related to:
- firewalling
- natting ipsec packets to pieces
- no ip forwarding
- bogus 2.6 martians/icmp redirects/
- rp_filter

> TRY: Windows XP SP2 to Linux Openswan-2.3.1 with Kernel

I have made this work in my setups using NETKEY. Behind NAT with L2TP.


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