Re: OSPF with unnumbered : duplicate router-id

From: GAURAV MADAN (gauravmadan1177@gmail.com)
Date: Thu Dec 11 2008 - 11:25:27 ARST


VOL 3 Lab 7
task 4.6 onwards

On Thu, Dec 11, 2008 at 6:29 PM, Rick Mur <rick@rickmur.com> wrote:

> Strange behaviour, it should work based on my test topology.
>
> Could you add the specific IEWB lab and task number with it?
>
> Because the topology lacks a little now because we can't see what devices
> are behind it and how they are connected and routed.
>
> (btw. I always want to say 'dude' after I see FLOOD_WAR!! ;-)
>
> Rick Mur
>
> CCIE #21946 (R&S)
>
> CCNP, CCIP, JNCIA-ER, MCSE
>
> rick@rickmur.com
>
> On Thu, 11 Dec 2008 17:39:58 +0530
>
> "GAURAV MADAN" <gauravmadan1177@gmail.com> wrote:
>
> HI frnds
>
> I am not at all able to point out whats happening wrong . Dont want
>
> to
>
> unconfigure and configure again untill I dig whats happening : PLzz
>
> help em
>
> in this
>
> ======s0/0/0=R4
>
> | s0/0/1
>
> |
>
> |
>
> | s0/0/1
>
> ======s0/0/0=R5
>
> R4 and R5 are on PPP link but I had unsed IP unnumbered .
>
> R4 getting IP from s0/0/0 ; R5 getting from virtual-template
>
> R4 s0/0/0 is PPPoFR ..... R5 s0/0/0 is normal FR
>
> **************************** R4 Configs *********************
>
> Rack1R4(config-if)#do sh run int s0/0/1
>
> Building configuration...
>
> Current configuration : 100 bytes
>
> !
>
> interface Serial0/0/1
>
> ip unnumbered Virtual-Template1
>
> encapsulation ppp
>
> clock rate 125000
>
> end
>
> Rack1R4(config-if)#do sh run int s0/0/0
>
> Building configuration...
>
> Current configuration : 125 bytes
>
> !
>
> interface Serial0/0/0
>
> no ip address
>
> encapsulation frame-relay
>
> frame-relay interface-dlci 402 ppp Virtual-Template1
>
> end
>
> Rack1R4(config-if)#do sh run int virtual-temp 1
>
> Building configuration...
>
> Current configuration : 124 bytes
>
> !
>
> interface Virtual-Template1
>
> ip address 144.1.24.4 255.255.255.0
>
> ppp authentication chap
>
> ppp chap hostname Rack1R4
>
> end
>
> *************************** R5's configs
>
> ******************************
>
> Rack1R5(config-if)#do sh run int s0/0/0
>
> Building configuration...
>
> Current configuration : 71 bytes
>
> !
>
> interface Serial0/0/0
>
> no ip address
>
> encapsulation frame-relay
>
> end
>
> Rack1R5(config-if)#do sh run int s0/0/0.1
>
> Building configuration...
>
> Current configuration : 151 bytes
>
> !
>
> interface Serial0/0/0.1 multipoint
>
> ip address 144.1.15.5 255.255.255.0
>
> ip ospf network broadcast
>
> frame-relay map ip 144.1.15.1 501 broadcast
>
> end
>
> Rack1R5(config-if)#do sh run int s0/0/1
>
> Building configuration...
>
> Current configuration : 77 bytes
>
> !
>
> interface Serial0/0/1
>
> ip unnumbered Serial0/0/0.1
>
> encapsulation ppp
>
> end
>
> *************************** OSPF Configs ***********************
>
> R5
>
> !
>
> router ospf 10
>
> router-id 150.1.5.5
>
> log-adjacency-changes
>
> network 144.1.5.5 0.0.0.0 area 0
>
> network 144.1.15.5 0.0.0.0 area 0
>
> !
>
> Rack1R4(config-if)#do sh run | sec ospf
>
> router ospf 10
>
> log-adjacency-changes
>
> area 4 range 150.1.4.0 255.255.255.0
>
> network 144.1.24.4 0.0.0.0 area 0
>
> network 150.1.4.4 0.0.0.0 area 4
>
> ********************************************** ERROR
>
> ********************
>
> Rack1R4(config-if)#
>
> *Dec 11 12:01:27.866: %OSPF-4-DUP_RTRID_AREA: Detected router with
>
> duplicate
>
> router ID 150.1.4.4 in area 0
>
> Rack1R4(config-if)#
>
> *Dec 11 12:01:45.090: %OSPF-4-FLOOD_WAR: Process 10 re-originates LSA
>
> ID
>
> 144.1.5.10 type-2 adv-rtr 150.1.4.4 in area 0
>
> Where am i missing . Can someone please guide
>
> Gaurav Madan.
>
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>
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>
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