[Openswan Users] L2tp/ipsec connection issue

[Paul Wouters]

On Wed, 11 Mar 2009, Hafeez Rehman wrote:

> I am sorry for the duplicate post.
> 
> I have the following config files working fine on kernel 2.4 (Openwrt) Openswan 2.4.4 xl2tpd 1.04
> 
> Now I have moved to,
> 
> Kernel 2.6.25.17 (openwrt 8.09) 
> xl2tpd 1.2.4  
> openswan 2.6.18 using klips
> 
> I have also compiled Openswan 2.6.20, but it does not even reach xl2tpd.
> So I merged ipsec_esp.c from 2.6.20 to 2.6.18 thinking it will fix my problem, but it did not.
> I cannot even cross compile 2.6.19 for openwrt. So I am stikking with openswan 2.6.18 it compiles and connects.
> 
> I hope I have provided as much info you guys need. Please help me I really need this working.
> 
> I can connect using windows l2tp/ipsec client but only while tcpdump is running on wan interface.

It is interesting that running tcpdump fixes your issues though.... I
know of old times that it would cause some kind of bridging oddities when
the network stack, but I wonder how this particular instance relates to
our problem....

Paul