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Subject: RE: Two Cipes
From: Roskanuk Michal <Michal.Roskanuk,AT,merlin,DOT,cz>
Date: Thu, 26 Oct 2000 19:26:36 +0200

> > >Hi u all,
> > >i've already read the mails about connecting three 
> > >internal nets thanks to two CIPE options >files
> > >and tried to make it work. Now i got machine A
> > >connectet to B throu cipcb0 with key0 and port0.
> > >It works great. Machine A should connect to C
> > >throu cipcb1, with key1and port1. This  won't work.
> > >Machine A has a uptodated firewall, which really uses the 
> > >same rules for machine B and >C.
> > >Machine B and C have the same old firewall with identical 
> > >rules (different ips, of >course :)) ).
> >
> > Are you sure the firewall rules permit the UDP ports 
> > used by A<->C?
> 
> Yes, the rules A<->C are exactely the same as for A<->B 
> (which works), I mean....
> the port0 has the same rules as port1.
> Fothermore: the rules in C and B are identical.

If u want to be absolutely sure, export/list these rules
(especially on B and C). For ipchains 'ipchains -L'
or 'ipchains-save', for ipfwadm similiar ... already forgot.
u can say i'm paranoid, but who knows.
(BTW u didn't specified your linux.) Also make sure
that there isn't any other fw on the way (i suppose
another comm. between A <-> works well and u've tested it
already).

Mike





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