By using NAT transparency it shoves it out port 80 instead of 1723 & 500.
So using NAT transparency as a work-around is relevant to them blocking
useful ports.

Daniel



-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of
[EMAIL PROTECTED]
Sent: Monday, November 26, 2001 10:55 PM
To: [EMAIL PROTECTED]
Subject: Re: ISPs that don't allow IPSEC protocol thru


  I believe it was actually ComCast, a reseller of @home cable
service.  I believe they block GRE and perhaps also ports used by
IKE; this has nothing to do with NAT.
  They also clearly include VPN usage as prohibited by their AUP,
along with bandwidth reselling and other commercial uses.  So their
network policy of blocking this traffic is enforcement of a written
policy by which users are (allegedly) already bound.

DG


On 26 Nov 2001, at 17:27, Ron DuFresne wrote:

>
> I recall a year or two ago road runner announcing they prohibit ipsec and
> other security tunnels from their user accounts, they consider such
> connections other then mere home user accounts and looked to be pucshing
> for a tad more cash from those 'business' accounts.
>
> Thanks,
>
> Ron DuFresne
>
> On Mon, 26 Nov 2001 [EMAIL PROTECTED] wrote:
>
> > Does anyone know where I can find a list of ISP's that DOESN'T let the
IPSEC protocol thru?  The reason I ask is that my users are asking who they
can use for VPN's and who they can't.  I am working for a global company, so
I can't just check with the local ISP's, cause we have workers all
over the world.
> >
> > Thanks in advance for your help
> >
> > _______________________________________________
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> >
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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>
> OK, so you're a Ph.D.  Just don't touch anything.
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