[asterisk-biz] Re: Verizon Interconnection

[Matt]

Christopher,
I understand exactly what you are saying.... but let's think about this for
a moment.

If the networks we are stitching together have all public IPs, then either
one of two things is happening.

1 - You can't access the IPs from the Internet, so they aren't really
public....they are from the public pool, and are depleting the limited
supply for IPs, but they aren't public, therefore they should be private
IPs.

2 - You can access the IPs from the Internet, therefore, there is no need
for a VPN.

You should never never never NEVER use public IPs behind a firewall (unless
they can be accessed from the Internet).   To put a public IP behind a
firewall where it can't be accessed is a waste of IP space, and asking for
routing problems.

On 6/9/07, Christopher LILJENSTOLPE <cdl at asgaard.org> wrote:
>
> Ahh - I have to disagree here.  A VPN makes a virtual connection
> between two networks.  The state of those networks is entirely up to
> the people who run the networks.  I know of a LOT of cases where
> people use VPNs to tunnel puddles of networks over the public
> infrastructure to stitch a single AS together, for example.
>
> As far as 1918 vs. globally unique address space, there are many
> "public" and "private" networks that use the later.  Anyone planning
> on using 1918 space for VoIP infrastructure that is going to connect
> to external entities is not really thinking things through (or
> believe that SBC's will make everything painless).  To quote Randy
> Bush...
>
>         Chris
>
> On Jun 8, 2007, at 23.30 , Matt wrote:
>
> > I'm not sure what the problem is. You use public IP, you use IPSEC,
> > static
> > route VZ IPs down the tunnel. No problem.
> >
> > Right there is no problem, now.   As everyone else in this thread
> > has said (for the most part).  It works once you understand what
> > Verizon is trying to do, however prior to that their IPSEC layout
> > is rather confusing.  IE  *normally* a VPN connects two PRIVATE
> > networks togethor... not two PUBLIC networks.
> > _______________________________________________
> > --Bandwidth and Colocation provided by Easynews.com --
> >
> > asterisk-biz mailing list
> > To UNSUBSCRIBE or update options visit:
> >    http://lists.digium.com/mailman/listinfo/asterisk-biz
>
> _______________________________________________
> --Bandwidth and Colocation provided by Easynews.com --
>
> asterisk-biz mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-biz
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.digium.com/pipermail/asterisk-biz/attachments/20070609/559e10fe/attachment-0001.htm