-----Original Message-----
From: Mark Lewis [mailto:[EMAIL PROTECTED]
Sent: 10 March 2008 13:57
To: 'neal rauhauser'
Subject: RE: [c-nsp] GRE vs IPIP
>
> Felix,
>
> The IP in IP encapsulation slips right through any provider, while
> GRE
> is protocol 47 and may be filtered (just like PPTP).
>
>
Eeeer, perhaps I am missing something here, but I thought the question was
about using GRE/IP-IP *over* IPsec (rather than the other way around). If
that is the case (and assuming ESP with a non-null encryption alg is in the
mix), the provider could (hopefully!) only see IP prot 50/51 (ESP/AH),
rather than GRE/IP-IP.
So, filtering, unless it's filtering of 50/51 (!), shouldn't come into it...
Mark
>
> On Sat, Mar 8, 2008 at 11:59 AM, Felix Bako <[EMAIL PROTECTED]>
> wrote:
>
> > Hello,
> > I would Like to do a secure site to site VPN.
> > Whats it the advantage of using either GRE over IPSEC or IPIP over
> IPSEC.
> > Since I will need to run an IGP between the Two sites
> >
> > Cheers
> > --
> >
> > Best Regards,
> >
> > Felix Bako
> > Network Engineer
> > Africa Online, Kenya
> > Tel: +254 (20) 27 92 000
> > Fax: +254 (20) 27 100 10
> > Email: [EMAIL PROTECTED]
> > Aim:felixbako
> >
> >
> >
> >
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>
> --
> mailto:[EMAIL PROTECTED] //
> GoogleTalk: [EMAIL PROTECTED]
> IM: nealrauhauser
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