Re: [LARTC] Gre Tunneling Problem

[Christoph Simon <ciccio@kiosknet.com.br>]

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
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