Re: Frame-Relay "extra" mappings?

Awesome link! Thanks

Charles

                                                                                                                                 
  From: michael haynes <mghaynes_at_gmail.com>
                                                                                                                                 
  To: Charles.Henson_at_regions.com
                                                                                                                                 
  Cc: ccielab_at_groupstudy.com
                                                                                                                                 
  Date: 05/20/2009 10:34 AM
                                                                                                                                 
  Subject: Re: Frame-Relay "extra" mappings?
                                                                                                                                 

I believe the only way to get rid of the 0.0.0.0 mappings is to 'write mem'
and reload.

See the blog entry:
http://blog.internetworkexpert.com/2008/06/29/understanding-frame-relay-mappings-to-0000/

Hope that helps
Michael

On Wed, May 20, 2009 at 11:26 AM, <Charles.Henson_at_regions.com> wrote:

> All,
> I have a simple lab requirement:
>
> 4 routers connected to frame switch
> form "full mesh" with all routers
> no static L2-L3 mapping
>
> Over course their are extra DLCIs so I had to filter those out to only
> learn the proper ones dynamically. No big deal. On 3 of the routers I end
> up with the proper dynamic frame mappings to the proper DLCIs and IPs.
>
> R1 - R3: working example
> Rack1R[1-3](config-if)#do sho run int s1/0
> Building configuration...
>
> Current configuration : 184 bytes
> !
> interface Serial1/0
> ip address 132.1.0.[1-3] 255.255.255.0
> encapsulation frame-relay
> serial restart-delay 0
> no frame-relay inverse-arp IP XXX
> no frame-relay inverse-arp IP YYY
> end
>
> Rack1R1(config-if)#do sho frame map
> Serial1/0 (up): ip 132.1.0.2 dlci 102(0x66,0x1860), dynamic,
> broadcast,, status defined, active
> Serial1/0 (up): ip 132.1.0.3 dlci 103(0x67,0x1870), dynamic,
> broadcast,, status defined, active
> Serial1/0 (up): ip 132.1.0.4 dlci 104(0x68,0x1880), dynamic,
> broadcast,, status defined, active
> Rack1R1(config-if)#
>
> On router 4, the config is the same, however, my DLCI mappings in the
frame
> map include some additional mappings for 0.0.0.0.
>
>
> Rack1R4(config-if)#do sho run int s1/0
> Building configuration...
>
> Current configuration : 184 bytes
> !
> interface Serial1/0
> ip address 132.1.0.4 255.255.255.0
> encapsulation frame-relay
> serial restart-delay 0
> no frame-relay inverse-arp IP 405
> no frame-relay inverse-arp IP 413
> end
>
> Rack1R4(config-if)#do sho frame map
> Serial1/0 (up): ip 0.0.0.0 dlci 403(0x193,0x6430)
> broadcast,
> CISCO, status defined, active
> Serial1/0 (up): ip 0.0.0.0 dlci 402(0x192,0x6420)
> broadcast,
> CISCO, status defined, active
> Serial1/0 (up): ip 0.0.0.0 dlci 401(0x191,0x6410)
> broadcast,
> CISCO, status defined, active
> Serial1/0 (up): ip 132.1.0.1 dlci 401(0x191,0x6410), dynamic,
> broadcast,
> CISCO, status defined, active
> Serial1/0 (up): ip 132.1.0.2 dlci 402(0x192,0x6420), dynamic,
> broadcast,, status defined, active
> Serial1/0 (up): ip 132.1.0.3 dlci 403(0x193,0x6430), dynamic,
> broadcast,, status defined, active
> Rack1R4(config-if)#
>
> I have full reachability and everything is working fine. But, I can't
> figure out why this router (only) gets several 0.0.0.0 mappings and I
also
> can't clear them out. I have defaulted the interface, cleared frame
inarp,
> verified the mappings are gone and rebuilt the config and I build the
same
> map entries. The last 3 are legit and match my other 3 routers. The first
3
> (for 0.0.0.0) aren't negatively impacting anything but won't go away and
I
> can't figure out how they are being generated.
>
> Can anyone provide any insight into this? Again, lab works, but I'm
trying
> to get my learn on and I'm stumped. The exalted google reveals only OSPF
or
> IS-IS related insight.
>
> FYI, this is IE 4.1 VOL2 LAB2
>
> Charles
>
>
> Blogs and organic groups at http://www.ccie.net
>
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Received on Wed May 20 2009 - 11:04:58 ART