From: Vazquez, Jorge (Jorge.Vazquez@acs-inc.com)
Date: Mon May 19 2008 - 16:36:35 ART
What about having configured a subinterface, when is necessary to disable
inverse-arp in the MAIN interface?
Interfa s0/0
Ip address 1.2.3.4 255.255.255.0
Encapsulation frame-relay
Interfa s0/0.1 point-to-point
Frame interface-dlci 100
I think it is needed because other Virtual Circuits may be created with
other routers using DLCIs other than DLCI 100 in the main interface. Is that
correct?
Jorge
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Thor
Kopp
Sent: Monday, May 19, 2008 12:29 PM
To: Manuel Mindez Cano
Cc: ccielab@groupstudy.com
Subject: Re: no frame-relay inverse-arp
disable frame-relay inverse-arp when you don't want the router to
dynamically ask another router for it's L2/L3 mapping ie if you want to use
static mappings that you need to define. if you have R1, R2 & R3 in a full
mesh but you don't want to use the vc between R2-R3, then by default you
will inverse-arp for the address of R3 from R2. in this situation, disable
frame-relay inverse-arp, clear frame-relay inarp & then apply you manual
frame-relay map statements to manually direct the traffic & which
frame-relay pvc you should use. BTW you can't disable a router replying to
frame-relay inverse-arp messages, you can only disable a router asking for
them.
you can't disable frame-relay inverse-arp on a point-to-point link but for a
good reason, you only have 1 PVC that you will send the traffic to ie the
host at the other end.
- Thor
On Mon, May 19, 2008 at 6:14 PM, Manuel Mindez Cano <
Manuel.Mendez@telindus.es> wrote:
> Hi again group,
>
> Maybe this is a stupid question, but here I go:
>
> When we are required to disable frame-relay inverse-arp, and we are
working
> with sub-interfaces, where we have to configure "no frame-relay
> inverse-arp"?
>
> Below the main interface?
>
> Interface serial 0/0
> no ip address
> encapsulation frame-relay
> no frame-relay inverse-arp
>
> Below the sub-interface?
>
> Interface serial 0/0
> no ip address
> encapsulation frame-relay
>
> Interface serial 0/0.1 point-to...
> Ip address x.x.x.x x.x.x.x
> no frame-relay inverse-arp
>
>
> Both?
>
>
> Many thanks for your answers. Can anybody to link me to a Cisco Doc about
> this?
>
>
>
> Manuel.
>
>
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