[Openswan Users] nat-t causes 'ERROR: asynchronous network error'

Stefan Denker Stefan at dn-kr.de
Fri Nov 10 14:01:44 EST 2006

On Fri, Nov 10, 2006 at 04:35:08PM +0100, No body is Perfect wrote:
> This was XP behind nat-t connecting to an office network with openswan, 
> xl2tpd-1.1.05 and openswan 2.4.6 and newer.
> Openswan 2.4.4 with l2tpd-0.69-13 no problem. any ideas ?
> ERROR: asynchronous network error report on eth1 (sport=4500) for message to 
> port 4500, complainant No route to host [errno 
> 113, origin ICMP type 3 code 1 (not authenticated)]

Could be this is the same problem I had just this week. There is a bug
report on this: http://bugs.xelerance.com/view.php?id=693

Does your connection description include a "leftnexthop"? If not, try to
add "leftnexthop=your.gate.way" as a workaround and try again..


"Don't try to put me at ease, Miss von Humpeding," he(Samuel Vimes) said.
"It makes me nervous when people do that. It's not though I have any ease
 to be put at."
                                                        [Terry Pratchett - Thud]
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