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Date:      Tue, 06 Sep 2011 09:22:11 -0400
From:      Mike Tancsa <mike@sentex.net>
To:        Mikhail Goriachev <mikhailg@webanoide.org>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: IPsec phase 1 and 2 negotiation in an infinite loop.
Message-ID:  <4E661E83.9050507@sentex.net>
In-Reply-To: <d768d645fb3fc7938f5fea41e2738014.squirrel@www.vap.navalradio.net>
References:  <8d457de47ed92550a511265436c183f9.squirrel@www.vap.navalradio.net> <4E657CEA.7080300@sentex.net> <d768d645fb3fc7938f5fea41e2738014.squirrel@www.vap.navalradio.net>

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On 9/5/2011 11:58 PM, Mikhail Goriachev wrote:
>         (p: #1 protoid=isakmp transform=1
>             (t: #1 id=ike (type=lifetype value=sec)(type=lifeduration
> value=7080)(type=enc value=3des)(type=auth
> value=preshared)(type=hash value=sha1)(type=group desc
> value=modp1024))))
>     (vid: len=16 afcad71372a1f1c96b8696fc99570100)
> 03:17:31.637424 IP (tos 0x0, ttl 50, id 0, offset 0, flags [DF], proto UDP
> (17), length 108)
>     w.x.y.z.500 > a.b.c.d.500: [udp sum ok] isakmp 1.0 msgid  cookie ->:
> phase 1 R ident:
>     (sa: doi=ipsec situation=identity
>         (p: #1 protoid=isakmp transform=1
>             (t: #1 id=ike (type=lifetype value=sec)(type=lifeduration
> value=7080)(type=enc value=3des)(type=auth
> value=preshared)(type=hash value=sha1)(type=group desc
> value=modp1024))))


OK, both sides are 3des, psk and sha1 dhgroup 1. Thats good.

> 
> Note: a.b.c.d is my end. w.x.y.z is the other end. "vid:", "ke:" and
> "nonce:" are scrambled.
> flag=0x8000, lorv=AES-CBC
> Sep  5 20:40:27 vpnmach racoon: DEBUG: encryption(aes)
> Sep  5 20:40:27 vpnmach racoon: DEBUG: type=Hash Algorithm, flag=0x8000,
> lorv=MD5
> Sep  5 20:40:27 vpnmach racoon: DEBUG: hash(md5)
> Sep  5 20:40:27 vpnmach racoon: DEBUG: type=Authentication Method,


... yet, you have AES and md5 ?? where are those coming from ? Do you
have an extra config for the remote somewhere in your files perhaps that
is matching ?

	---Mike

> remote w.x.y.z {
>         exchange_mode main;
>         proposal_check obey;
> 
>         proposal {
>                 encryption_algorithm 3des;
>                 hash_algorithm sha1;
>                 authentication_method pre_shared_key;
>                 dh_group modp1024;
>         }
> }
> 




-- 
-------------------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada   http://www.tancsa.com/



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