On 2008-11-25, Christoph Leser <[EMAIL PROTECTED]> wrote:
> I see the above message in the tcpdump of /var/run/isakmpd.pcap, when a
> cisco router establishes quick mode to my openbsd. The connect works ok,
> just wondering what this message could mean. I have only seen
> 'ENCAPSULATION MODE = TUNNEL' in this context.

That's the encapsulation mode used by draft-ietf-ipsec-nat-t-ike.
The non-draft version uses 3 not 61443.

(There is also 61433 used by some broken Watchguard products).

> As connect setup fails in the opposite direction ( with NO PROPOSAL
> CHOSEN from cisco ), using the same parameters.

You need a lot more information to work out what's happening here.

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