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Thread: Re: best cofig for Windows 2003




Re: best cofig for Windows 2003
user name
2007-04-17 21:24:05
On Tue, 17 Apr 2007, Remigiusz Stachura wrote:

> My question is because of troubles with lost connection
(there is no
> route to windows server - I cannot successfully ping
the Windows host
> until I restart OpenSwan). Both of servers have static
IP. Only Linux
> sent files.
>
> For Windows 2003 server default settings are:
> IKE SA - master key lifetime: 8 hours,
> IPSEC SA - session key lifetime: 1 hour or 100 MB;
> For Openswan:
> IKE SA - master key lifetime: 1 hour, max 8 hours,
> IPSEC SA - session key lifetime: 8 hour, max 24 hours.
> Am I correct?

Yes. You can try and match the lifetimes using lifetime= and
ipseclifetime=

> I think that in case of using defaults settings I am
experiencing
> situation where Openswan has only Quick Mode
established without Main
> Mode.

"quick mode without main mode" is really what
people call "Rekeying".

> conn host-to-host
>  type=transport
>  authby=secret
>  pfs=no
>  rekey=yes
>  failureshunt=passthrough

this is risky, you'll be leaking cleartext if your tunnel
goes down.

>  keyingtries=5
>  left=xx.xx.xx.xx
>  right=yy.yy.yy.yy
>  ikelifetime=8h
>  keylife=1h

So swap these two i guess.

Check wether windows fails as Initiator on rekey, or as
Responder on
rekey, and then match the lifetimes to ensure it stays the
Initiator,
or the Responder.

Paul
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