RE: [LARTC] Gre Tunneling Problem

From: "Joe Patterson" <jpatterson@asgardgroup.com>
To: lartc@vger.kernel.org
Subject: RE: [LARTC] Gre Tunneling Problem
Date: Tue, 08 Jan 2002 01:01:00 +0000	[thread overview]
Message-ID: <marc-lartc-101045214626752@msgid-missing> (raw)
In-Reply-To: <marc-lartc-101039544916808@msgid-missing>

I would suggest using a different network for the gre tunnel, like:

Linux A
ip tunnel add netb mode gre remote 205.198.x.1 local 203.189.x.1 ttl 255
ip link set netb up
ip addr add 192.168.3.1/30 dev netb
ip route add 192.168.2.0/24 dev netb via 192.168.3.2

Linux B
ip tunnel add neta mode gre remote 203.189.x.1 local 205.198.x.1 ttl 255
ip link set neta up
ip addr add 192.168.3.2/30 dev neta
ip route add 192.168.1.0/24 dev neta via 192.168.3.1

Otherwise, it's just wierd.  Not that that's bad, it just sometimes doesn't
work...

-Joe

> -----Original Message-----
> From: lartc-admin@mailman.ds9a.nl [mailto:lartc-admin@mailman.ds9a.nl]On
> Behalf Of glynn
> Sent: Sunday, January 06, 2002 7:59 PM
> To: Christoph Simon
> Cc: lartc@mailman.ds9a.nl
> Subject: Re: [LARTC] Gre Tunneling Problem
>
>
> Hello Christoph, actually I havent done with netfilter rules and
> i dont have
> any restrictions applied for the linux, its a normal configuration, I also
> enable the forwarding under the /proc/sys/net/ipv4/ip_forward
> with the value
> of 1. can you figure out whats the problem? thanks
>
> Glynn
>
> ----- Original Message -----
> From: "Christoph Simon" <ciccio@kiosknet.com.br>
> To: "glynn" <glynn@itextron.com>
> Cc: <lartc@mailman.ds9a.nl>
> Sent: Monday, January 07, 2002 7:41 PM
> Subject: Re: [LARTC] Gre Tunneling Problem
>
>
> > On Sun, 6 Jan 2002 17:39:46 +0800
> > "glynn" <glynn@itextron.com> wrote:
> >
> > > Hello everyone, I have a problem regarding gre tunneling, I have two
> > > linux box both of them has a private network and the linux A is
> > > connected to the internet via wireless radio and the other linux B is
> > > connected to the internet via lease line. Here is the setup of my two
> > > linux box
> > >
> > > Linux A
> > > eth0 = 203.189.x.1 (internet)
> > > eth1 = 192.168.1.1 (going to hub private network)
> > >
> > > Linux B
> > > eth0 = 205.198.x.1 (internet)
> > > eth1 = 192.168.2.1 (going to hub private network)
> > >
> > > here is my configuration in Linux A and B. I also load the modules
> > > needed (insmod ip_gre)
> > >
> > > Linux A
> > > ip tunnel add netb mode gre remote 205.198.x.1 local
> 203.189.x.1 ttl 255
> > > ip link set netb up
> > > ip addr add 192.168.1.1 dev netb
> > > ip route add 192.168.2.0/24 dev netb
> > >
> > > Linux B
> > > ip tunnel add neta mode gre remote 203.189.x.1 local
> 205.198.x.1 ttl 255
> > > ip link set neta up
> > > ip addr add 192.168.2.1 dev neta
> > > ip route add 192.168.1.0/24 dev neta
> > >
> > > I could ping both sides the eth0 and also the eth1 with is for the
> > > private network, here is my problem i couldnt ping the other
> private ip
> > > addresses which my eth1 is connected to the hub, anyone can help me,
> > > whats my error. pls reply asap. thanks
> >
> > Do you have any netfilter rules not letting pass proto 47? You'll also
> > have to allow forwarding.
> >
> > --
> > Christoph Simon
> > ciccio@kiosknet.com.br
> > ---
> > ^X^C
> > q
> > quit
> > :q
> > ^C
> > end
> > x
> > exit
> > ZZ
> > ^D
> > ?
> > help
> > .
> >
>
>
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