[Openswan Users] NAT Traversal

[Werner Otto]

Hi All,

 

I am posting my first issue regarding OpenSwan 2.2.0. I installed it on
Fedora Core 3 2.6.9 kernel. I am getting messages regarding
draft-ietf-ipsec-nat-t-ike-03, draft-ietf-ipsec-nat-t-ike-02_n, these
messages relate to negotiating Nat-Traversal in the IKE. 

 

I am trying to get ESP packets from a Cisco SOHO 91 situated at
corporate A behind a Nokia Checkpoint Firewall to my VPN server as
listed above. 

 

When doing a packet trace on the public ip:

17:16:50.481456 IP 80.168.199.87 > 194.42.124.12:
ESP(spi=0x21fba68e,seq=0x5f2)

17:16:50.481618 IP 194.42.124.12 > 80.168.199.87:
ESP(spi=0xb86821fc,seq=0x63d)

 

I am getting ESP packets instead of UDP encapsulated ones. 

 

My question:

How do I enable udp encapsulation on my server

 

Regards

Werner

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