Re: (PM) IP UnNum over FrameRelay

Tom Fellenz (tlf@livingston.com)
Fri, 09 Jan 1998 10:29:56 -0800

IP unnumbered over Frame-Relay (FR) has not been determined as an IETF, or
any other, specification. Naturally there is a spec for PPP IP unnumbered.
Cisco does have a proprietary implementation of IP unnumbered over FR with
a serial subinterface 'point-to-point' configuration. I believe they may
even have implemented it on point-to-multipoint, but it makes me kak to
think about it. ;)

Though the use of IP unnumbered over FR is practical in saving IP addresses
and simplifying your network, you lose considerable management and fault-
tolerant characteristics for that segment: no IP address, no ping/traceroute.

We have no near term effort towards IP unnumbered for FR. RFE's have been
submitted, personally.

Regards,

--
Tom Fellenz                                 Technical Support Staff Engineer
Lucent Technologies, Inc                       Data Networking Systems Group
Remote Access Business Unit           4464 Willow Road, Pleasanton, CA 94588
tlf@livingston.com               (800)458-9966 (1) http://www.livingston.com
(CCIE #1474)




At 09:59 PM 1/8/98 -0700, Stephen Fisher wrote:
>
>Ciscos don't do it either.  I believe the reason is because FR can, and
>often is, meshed (more than one destination possible when going out each
>physical port).
>
>On Thu, Jan 08, 1998 at 06:30:21PM -0500, Mike Pistone wrote:
>
>> What is the reason for not allowing IP Unnumbered over FR on Livingston
>> Routers?
>
>
>-- 
> - Steve
>  - Systems Manager
>  - Community Internet Access, Inc.
>  - Gallup and Grants, New Mexico
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