From: Darby Weaver (darbyweaver@yahoo.com)
Date: Sun Oct 15 2006 - 10:14:29 ART
You could get IE's Class on Demand - This one gets
beat to death.
Basically
no frame-relay inverse-arp unless specified otherwise
while each interface is shutdown is what I'd call a
best practice...
Now there is a book by Cisco Press called Frame Relay
Switching that handles the rest of the story.
Again the Brians beat "no arp frame" to death since it
is on most of the workbooks or used to be and they
didn't think it did much either in recent IOS
revisions.
Put this one to bed. You have bigger fish to fry.
--- Cisco Key <ciscokey@googlemail.com> wrote:
> Hi Ladies and Gentleman
>
> Is there anyone that can advise me?
>
> Thanks in advance
>
> Paul
>
>
> On 11/10/06, Cisco Key <ciscokey@googlemail.com>
> wrote:
> >
> > Hi all
> >
> > Wonder if you can help me with the following
> problem:
> >
> > Forgive me if this has been discussed before:
> >
> > Scenario
> >
> > Hub Router
> > / \
> > / \
> > Spoke Router-A Spoke Router-B
> >
> > I have analysed the following:
> >
> > If I disable inverse arp on Spoke Router B, I
> still get a dynamic mapping
> > from Spoke Router A on Spoke Router B but nothing
> for Spoke Router B that's
> > of course from a dynamic perspective!
> >
> > So am I correct in saying when you disable inverse
> arp on a router it
> > means that the router will not map dynamic arp but
> will still receive a
> > dynamic mapping from its neighbour router.
> >
> > Now am I correct in assuming if you want to
> disable inverse arp you will
> > have to do it on all routers
> >
> > Secondly if you have static maps configured or
> point to point interfaces
> > you don't need to disable inverse arp
> > or
> > But should you have frame-relay interface-dlci
> configured and multipoint
> > interface or the default NBMA then you would need
> to disable inverse arp
> >
> > Also if I may ask what does no arp frame-relay do
> as per my testing it had
> > no affect on any of the dynamic mappings
> >
> > I know what arp frame-relay does by definition
> given a network protocol
> > for example IP the arp frame-relay command
> determines the corresponding
> > hardware address which would be a dlci for
> frame-relay
> >
> > This is the same for normal arp but inverse arp is
> only used for example
> > in a bootp scenario whereby a device has a layer 2
> address and asks for a
> > layer 3 address same as frame relay inverse arp
> whereby you are a dlci layer
> > 2 is looking for a ip address to be mapped to
> >
> > What scenario would no arp frame-relay do?
> >
> > Apologies for the jabber but I need clarity
> >
> > thanks for you assistance in advance
> >
> > Best Regards
>
>
This archive was generated by hypermail 2.1.4 : Wed Nov 01 2006 - 07:29:05 ART