From: Matthew Seppeler (Matt.Seppeler@InetX.com)
Date: Sun Oct 17 2004 - 22:49:39 GMT-3
Yep, I'm glad I'm not the only one that's going crazy. Theory says that
frame inverse-arp will dynamically create the layer 2 to 3 mapping. One
thing to point out is that you will need to give it some time. Well, in
the last lab I did using this method of layer 2 to 3 resolution over
Frame, I gave it about 90 minutes with OSPF running over cloud with the
hello packets while I worked on other things. No go. I needed to kick
it a little and had no choice but to include the frame-relay
interface-dlci for each active dlci as John points out below. After a
couple of seconds, the dynamic maps came up and shortly followed up by
the OSPF neighbor adjacencies.
I still think the solution John gives below would answer a frame relay
objective in requiring dynamic mapping as the show frame map command
will show these mappings as dynamic. It does not make sense that these
dlci commands are needed. However, you may find yourself having to use
them, depending on the rack you are on.
If you wish to look into this further, refer to the following post on
IE's forum:
http://forum.internetworkexpert.com/ubbthreads/showflat.php?Cat=3&Number
=5856&page=0&view=collapsed&sb=5&o=&fpart=1
Matt Seppeler
Email: mseppeler@inetx.com
-----Original Message-----
From: John Matus [mailto:jmatus@pacbell.net]
Sent: Sunday, October 17, 2004 4:13 PM
To: ccie2be; lab
Subject: Re: weird inverse-arp problem
interface Serial0/0
ip address 132.1.0.4 255.255.255.0
encapsulation frame-relay
ip ospf network point-to-multipoint
frame-relay interface-dlci 401
frame-relay interface-dlci 402
frame-relay interface-dlci 403
frame-relay lmi-type cisco
that is the config for 4 routers in the frame cloud.......frame
inverse-arp
is on by default..........<?>
Regards,
John D. Matus
MCSE, CCNP
Office: 818-782-2061
Cell: 818-430-8372
jmatus@pacbell.net
----- Original Message -----
From: "ccie2be" <ccie2be@nyc.rr.com>
To: "John Matus" <jmatus@pacbell.net>; "lab" <ccielab@groupstudy.com>
Sent: Sunday, October 17, 2004 2:03 PM
Subject: Re: weird inverse-arp problem
> Hey John,
>
> Could you post your config's?
>
> Off-hand, the 1 thing that comes to mind is that if the routers were
> config'd with "no fram inv", then the local router would send out
inverse
> arp requests, but the remote routers wouldn't respond.
>
>
> ----- Original Message -----
> From: "John Matus" <jmatus@pacbell.net>
> To: "lab" <ccielab@groupstudy.com>
> Sent: Sunday, October 17, 2004 3:32 PM
> Subject: weird inverse-arp problem
>
>
>> i was setting up a frame network w/ inverse-arp <lab scenario> and
had
> enabled
>> frame-relay encapsulation on the natural interfaces and waited to see
the
>> dynamic mappings come to life, but nothing. so after 10 minutes i
>> decided
> to
>> use the 'frame interface dlci' command on the interfaces and viola,
the
>> mapping instantly came up.....
>> from my understanding this is not supposed to be necessary to form
>> dynamic
>> pvc's........or am i wrong???
>>
>>
>> Regards,
>>
>> John D. Matus
>> MCSE, CCNP
>> Office: 818-782-2061
>> Cell: 818-430-8372
>> jmatus@pacbell.net
>>
>>
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