From: Roberto Fernandez (rofernandez@tracfone.com)
Date: Tue May 15 2007 - 16:17:17 ART
Practice and experience support Brian's assertion
"no frame-relay inverse-arp" will do the job of deactivating inv-arp
requests for the local router (you would need static maps), however the
router will sill reply to requests from other routers.
Roberto Fernandez
Sr. Consultant, CCIE# 17150
Insight Enterprises, Inc
Cell +1 (786) 564 - 3289
Office +1 (305) 715 - 6537
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Sean.Zimmerman@clubcorp.com
Sent: Tuesday, May 15, 2007 2:35 PM
To: Sergio Silva
Cc: Brian Dennis; Cisco certification; Cisco Key; nobody@groupstudy.com
Subject: Re: ARP Frame relay
I'm kind of getting the impression here that if we're asked to disable
automatic l2-l3 frame-relay mapping methods that we should now issue a
'no arp frame-relay' in addition to 'no frame inv'. Should be safe,
right?
Sean
"Sergio Silva" <spmsilva@gmail.com>
Sent by: nobody@groupstudy.com
05/15/2007 01:23 PM
Please respond to
"Sergio Silva" <spmsilva@gmail.com>
To
"Brian Dennis" <bdennis@internetworkexpert.com> cc "Cisco Key"
<ciscokey@googlemail.com>, "Cisco certification"
<ccielab@groupstudy.com>
Subject
Re: ARP Frame relay
Thanks Brian
Its just its documented in practical studies as per the following
Router(config-if)no frame-relay inverse-arp Disables the sending of
Inverse ARP requests. Use this command in conjunction with no arp
frame-relay to prevent the dynamic mapping of PVCs. Router(config-if)no
arp
frame-relay Disables ARP responses. Use this in conjunction with the
no
frame-relay inverse-arp command.
So I just needed clarity on this
thank
p
On 15/05/07, Brian Dennis <bdennis@internetworkexpert.com> wrote:
>
> The "no arp frame-relay" command does not stop the router from sending
> inverse-ARP requests or replying to inverse-ARP requests. The command
> does not have any effect on inverse-ARP whatsoever. If you think
> about it there isn't support for ARP in Frame Relay to begin with so
> why would you ever need to disable it? Frame Relay supports
> inverse-ARP but not ARP.
>
> Inverse Address Resolution Protocol
> http://www.internetworkexpert.com/rfc/rfc1293.txt
>
> HTH,
>
> Brian Dennis, CCIE4 #2210 (R&S/ISP-Dial/Security/SP)
> bdennis@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com
> Toll Free: 877-224-8987
> Direct: 775-745-6404 (Outside the US and Canada)
>
>
>
> On 5/15/07 5:29 AM, "Cisco Key" <ciscokey@googlemail.com> wrote:
>
> > Hi Group
> >
> > I do apologise if this question has been asked a million times
> > before,
> but I
> > have been searching the archives and have still not found any
definitive
> > answer on the use/uselessness of ARP Frame-relay,
> >
> > I have found the following:
> >
> > ARP Frame-relay no arp frame-relay" also to circumvent sending
> > out
ip
> > address to DLCI binding information no arp frame-relay that this
> > will
> kill
> > auto install Router(config-if)no frame-relay inverse-arp Disables
the
> > sending of Inverse ARP requests. Use this command in conjunction
> > with
> no
> > arp frame-relay to prevent the dynamic mapping of
> PVCs. Router(config-if)no
> > arp frame-relay Disables ARP responses. Use this in conjunction
with
> the
> > no frame-relay inverse-arp command.
> >
> > Is this command really needed, I know this use to be used with ATM,
but
> I do
> > not really see the use of this command if no frame-relay inverse-arp
> does
> > the job
> >
> > Please comment
> >
> > Thanks
> > Paul
> >
> >
This archive was generated by hypermail 2.1.4 : Fri Jun 01 2007 - 06:55:21 ART