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SubjectHow do i set up a gre tunnel?
Off course I must load the gre module. But how do I 
set it up?

I found some keywords on this mailing list, like
ip-tunnels.tex,
iproute2,
ip tu ad gre1 mode gre ttl 64 remote 1.2.3.4 local 5.6.7.8

Does this refer to modprobe arguments or some utils I don't know?
Where do I find more information?

I want the gre tunnel on a lan<->lan ipchain'd firewall.
How do I tell ipchains to allow access to the tunnel?

I also need to pass igmp. I assume that I just tell ipchains
to allow protocol 2 (/etc/protocols says it's protocol 2).

All this is because I want to replace a cisco PIX firewall with
an ipchain'd linux box (redhat-6.0). Somebody inside who use
mbone says I should not use mroted, but tunnels.

On the inside there is a cisco 1000 talking pim through a
tunnel to an outside cisco 4513.

The kernel is 2.2.5-15 (redhat-6.0 standard).

--
Med venlig hilsen / Regards
Netdriftgruppen / Network Management Group
UNI-C

Tlf./Phone +45 35 87 89 41 Mail: UNI-C
Fax. +45 35 87 89 90 Bygning 304
E-mail: torben.fjerdingstad@uni-c.dk DK-2800 Lyngby


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