From: ftt (femi0802@googlemail.com)
Date: Sun Mar 08 2009 - 10:44:06 ARST
A significant difference between the 2 is that GRE tunnel introduces a lot
of overhead because you are putting a GRE header around an IPV6 packet and
then wrapping an IPv4 header around that.
Compare this to the IPv6IP tunnel mode where you encapsulate IPv6 inside
IPv4 WITHOUT the the GRE overhead.
Femi
On Sun, Mar 8, 2009 at 11:17 AM, GAURAV MADAN <gauravmadan1177@gmail.com>wrote:
> No pros / cons as such .. but sometimes language of ques can make us go mad
>
> protocol 47 : GRE
> protocol 41 : IPV6IP
>
> I rememebr these 2 numbers always and can be useful in desiging ACLs as
> well
>
>
> Gaurav Madan.
>
> On Sun, Mar 8, 2009 at 4:37 AM, Modular <modulartx@gmail.com> wrote:
>
> > So I've learned that if you want to tunnel IPv6 over IPv4, there are two
> > easy options you can turn to.
> >
> > 1. Normal GRE tunnel, using the default tunnel type.
> >
> > 2. Configuring ipv6ip tunnel type.
> >
> > What are the pros/cons of using each?
> >
> > Thanks,
> > Mod...
> >
> >
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