Subject: Re: gre/ip or ipip/ip encapsulation and mtu size
To: Brian Buhrow <email@example.com>
From: Mihai Chelaru <firstname.lastname@example.org>
Date: 10/04/2002 00:13:33
you could use mtu discovery protocol or mss clamping from ipnat. And this is
not a windows problem. It's normal if two peers are directly connected to a
1500 MTU network and they are not aware of the presence of a tunnel with some
smaller MTU between them.
On Thursday 03 October 2002 23:35, Brian Buhrow wrote:
> hello folks. Under cisco IOS, there is a command you can use, when
> configuring gre tunnels, for allowing the mtu size of the tunnel itself to
> be 1500 bytes. this causes encapsulated packets to be fragmented and
> reassembled at each end of the tunnel, but allows brain-damaged Windows
> machines to use the tunnels without user intervention.
> Can the gre(4) or ipip(4) drivers perform this
> trick and thus provide a 1500 byte mtu through the tunnel?
> If so, how do I configure it?