ospf: NON_BROADCAST network problem!!!

From: Khurram Khani (kkhani@xxxxxxxxxxxxxxxxxx)
Date: Fri Aug 09 2002 - 03:33:34 GMT-3


   
Hi All

I have HUB and Spoke Topology with default ospf network type (NON_BROADCAST).

R2 --- HUB (DR)
R5 --- Spoke (DRother)
R6 --- Spoke (DRother)

I am using ip ospf network non_broadcast (default type) on all routers

Problem # 1
***********

I tried to put "neighbor command" on my Spokes. Router accepts
it and then command vanishes from Configuration?? Any clue??

IOS (tm) 2500 Software (C2500-IS-L), Version 12.0(9),

Problem # 2
************
Router 5 shows up 2nd neighbor (Spoke) in Attempt STATE

R5-Spoke-2509#sh ip os ne

Neighbor ID Pri State Dead Time Address Interface
200.0.0.2 255 FULL/DR 00:01:58 150.50.100.2 Serial0 <---
this is R2 (HUB)
N/A 0 ATTEMPT/DROTHER - 150.50.100.6 Serial0
<===== problem!!

  Why is the other spoke (r6) showing up here in R5 neighbor???

R5-Spoke-2509#
R5-Spoke-2509#
R5-Spoke-2509#

ROUTERS CONFIGURATION ARE BELOW

Attached are my configuration of the three routers

R5 ----------------- Spoke

interface Serial0
 description Connected to R3R4-FrameRelaySWTICH
 ip address 150.50.100.5 255.255.255.224
 no ip directed-broadcast
 encapsulation frame-relay
 ip ospf priority 0
 no ip mroute-cache
 no fair-queue
 clockrate 64000
 frame-relay map ip 150.50.100.2 501
 frame-relay map ip 150.50.100.6 501
 frame-relay qos-autosense
!
interface Serial1
 no ip address
 no ip directed-broadcast
 shutdown
!
router ospf 1
 network 150.50.7.0 0.0.0.127 area 0
 network 150.50.100.0 0.0.0.31 area 0

R5-Spoke-2509#show ip os ne

Neighbor ID Pri State Dead Time Address Interface
200.0.0.2 255 FULL/DR 00:01:58 150.50.100.2 Serial0
N/A 0 ATTEMPT/DROTHER - 150.50.100.6 Serial0
R5-Spoke-2509#

R2------- HUB

interface Serial0
 description Connected to R3-FrameSwitch-IPExpert
 no ip address
 no ip directed-broadcast
 encapsulation frame-relay
 no ip route-cache
 no ip mroute-cache
 logging event subif-link-status
 logging event dlci-status-change
 no fair-queue
 clockrate 125000
 frame-relay traffic-shaping
 frame-relay class cir_value
!
interface Serial0.256 multipoint
 description HubInterface-On-R2
 ip address 150.50.100.2 255.255.255.224
 no ip directed-broadcast
 no ip route-cache
 ip ospf priority 255
 no ip mroute-cache
 frame-relay map ip 150.50.100.5 105
 frame-relay map ip 150.50.100.6 106
!
router ospf 1
 network 150.50.100.0 0.0.0.31 area 0
 neighbor 150.50.100.6
 neighbor 150.50.100.5

^C

R2-TrmSrv2511-HUB#show ip os ne

Neighbor ID Pri State Dead Time Address Interface
200.0.0.6 0 FULL/DROTHER 00:01:55 150.50.100.6 Serial0.256
200.0.0.5 0 FULL/DROTHER 00:01:42 150.50.100.5 Serial0.256
R2-TrmSrv2511-HUB#

R6 ---------- Spoke

interface Serial0:0
 description connected to r2-terminalServer
 ip address 150.50.100.6 255.255.255.224
 encapsulation frame-relay
 no ip route-cache
 ip ospf priority 0
 no fair-queue
 clockrate 64000
 frame-relay map ip 150.50.100.2 601
 frame-relay map ip 150.50.100.5 601
 frame-relay lmi-n391dte 255
 frame-relay lmi-n392dte 10
!
router ospf 1
 log-adjacency-changes
 network 150.50.100.0 0.0.0.31 area 0

R6-Spoke-MC3810#show ip os ne

Neighbor ID Pri State Dead Time Address Interface
200.0.0.2 255 FULL/DR 00:01:40 150.50.100.2 Serial0:0
R6-Spoke-MC3810#



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