[6bone] Build a tunnel with modem/router that filter IP protocol 41

[Tom Spier]

An other Solution could is a VPN like tunnel (between 2 linux boxes vtund
works perfect) and to set up an IPv6-in-IPv4 tunnel  which will be
established over an IPv4 tunnel. (: In this case, it is possible to tunnel
IPv6 behind a NAT-Gateway.

Tom Spier

----- Original Message -----
Sent: Thursday, August 08, 2002 9:19 AM


> Hi,
>
> On Thu, Aug 08, 2002 at 12:43:16AM +0200, Nicolas DEFFAYET wrote:
> [..]
> > You can read on the eicon website
> > (http://www.eicon.com/support/helpweb/adsl/vpn.asp):
> > "The NAT Router built-in to the 24xx series allows only TCP, UDP, GRE,
> > and ICMP protocols through. Any other protocols are silently dropped for
> > security reasons."
> [..]
> > => What's the possibility for build a IPv6 over IPv4 with this
> > modem/router ?
>
> Depending on your IPv6 router's capabilities, you could do IPv6 over GRE -
> this might work.
>
> Gert Doering
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