[122339] in North American Network Operators' Group
Re: 192.255.103.x
daemon@ATHENA.MIT.EDU (Matthew Palmer)
Thu Feb 11 22:49:54 2010
Date: Fri, 12 Feb 2010 14:49:18 +1100
From: Matthew Palmer <mpalmer@hezmatt.org>
To: nanog@nanog.org
Mail-Followup-To: nanog@nanog.org
In-Reply-To: <c7ef7cf71002111927o796bc03au7be6c50ab28c49ee@mail.gmail.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Thu, Feb 11, 2010 at 07:27:38PM -0800, Hector Herrera wrote:
> On Thu, Feb 11, 2010 at 6:08 PM, Matthew Palmer <mpalmer@hezmatt.org> wrote:
> > On Thu, Feb 11, 2010 at 05:30:11PM -0800, Hector Herrera wrote:
> >> I'm trying to diagnose an issue with 192.255.103.x
> >>
> >> As far as I can tell from IANA, the block 192/8 is allocated to ARIN.
> >> ARIN does not have a record of 192.255.103 being allocated to anybody.
> >>
> >> Here is the issue ... the customer insists that is the correct IP and
> >> for a few hours yesterday, it was actually working. ?Their satellite
> >> phone can reach it, but we can't see it advertised today from any
> >> networks.
> >
> > Smells to me like their satphone provider could be doing something dodgy.
> > More info would be handy: what your customer's relationship to that IP block
> > is, and what they think should be available at that IP block.
>
> According to the customer the IP is at their home network. They are
> in town for a certain large event *cough*fiverings*cough* and they
> keep insisting (and their home IT department indicates the IP is
> valid).
>
> The customer is now claiming this IP is part of a "hidden" and
> "secret" block of IPs ... How can you have hidden IPs?
Pfft, that's just code for "we picked a block at random". See also: 1/8.
> I think I'm just going to chalk this one up to a made up IP block that
> is probably statically routed by their satphone provider.
Indeed.
- Matt
