Compatibility problems IPsec 2.5.70 against FreeS/WAN 1.99

["Dr. Peter Bieringer " <pb@xxxxxxxxxxxx>]

Hi, 

has anyone successful examples of configuration settings for 2.5.70 IPsec 
(racoon/SAD/SPD) and FreeS/WAN? 

I got no success between 2 hosts, neither in tunnel nor in transport mode. 

(racoon and pluto config looks like ok, the IPsec-SA was proper established, 
also both hosts send packets with related spi). 

In transport mode, the comment of Andreas came true that in the ESP packet 
an IP-in-IP tunnel packet is transported (sent from the 2.5.70-ipsec host): 

16:42:06.215546 [|ip]
0x0000   45                                             E
16:42:08.215348 [|ip]
0x0000   4500 0007 0004 40                              E.....@ 

Looks like FreeS/WAN don't like this. 

In tunnel mode, ipsec0 interface of FreeS/WAN drops all received packages by 
the 2.5.70-ipsec host (seen in ifconfig stat). 

On 2.5.70-ipsec side I currently don't know how to debug, but I only see the 
ESP packet on the interface, nothing decrpyted. 

Very strange at all... 

Any hints available how to let FreeS/WAN communicate with 2.5.70-ipsec? 

Thank you very much,
Peter 

--
Dr. Peter Bieringer                     http://www.bieringer.de/pb/
GPG/PGP Key 0x958F422D               mailto: pb at bieringer dot de
Deep Space 6 Co-Founder and Core Member  http://www.deepspace6.net/