That's true, so he pretty much had 2 choices in that situation. He could
either switch the OSPF network type to multipoint on the hub and the spokes,
or he could insert neighbor statements. Both ways would work.
Fred
>From: "Eric Fairfield" <[EMAIL PROTECTED]>
>Reply-To: "Eric Fairfield" <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: Re: OSPF over FR - stop me before my head starts bleeding
>Date: Sat, 31 Mar 2001 17:59:31 -0600
>
>Why not any DR/BDR? The default network type for multipoint is NBMA which
>forms adjacencies. What we need here is a dump of the show ip ospf neigh
>and show ip ospf int commands. I am guessing it is that the hub is not the
>designated router.
>
>
>--
>Eric Fairfield
>CCIE #6413
>
>""Fred Danson"" <[EMAIL PROTECTED]> wrote in message
>[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > Hey Brad,
> >
> > Could you please paste your frame-switch configuration in a reply? Also,
>one
> > thing that caught my eye was the formation of DR/BDRs in your lab. When
>you
> > have point to multipoint subinterfaces, there should not be any DR/BDRs.
> > Could you do a show ip ospf int s0.1 on R3, R4, and R5? Also, what is
>the
> > purpose of s0.2 on R3?
> >
> > Fred - CCDA, CCNP
> >
> >
> >
> > >From: "Bradley J. Wilson" Reply-To: "Bradley J. Wilson" To: "cisco"
> > >Subject: OSPF over FR - stop me before my head starts bleeding Date:
>Sat,
> > >31 Mar 2001 14:16:38 -0500
> > >
> > >This one's kicking my ass. Should be simple, but apparently it isn't.
>I've
> > >got three routers in a frame relay configuration: R3 is the hub, R4 and
>R5
> > >are the spokes. For some reason the routes aren't being exchanged the
>way
> > >they should be, in spite of the fact that all the OSPF adjacencies
>*appear*
> > >to be there. R5 isn't getting any OSPF routes, and yet R4 (which has
>the
> > >exact same configuration) is getting a couple from R3. Below you'll
>find
> > >the configs, routing tables, and neighbor statuses for all three
>routers.
> > >
> > >Router 3 (hub):
> > >
> > >R3#sho run Building configuration...
> > >
> > >Current configuration: ! version 12.0 service timestamps debug uptime
> > >service timestamps log uptime no service password-encryption ! hostname
>R3
> > >! ! ip subnet-zero ! ! ! ! ! interface Loopback0 ip address 192.168.1.9
> > >255.255.255.252 no ip directed-broadcast ip ospf interface-retry 0 !
> > >interface Ethernet0 no ip address no ip directed-broadcast shutdown !
> > >interface Serial0 no ip address no ip directed-broadcast encapsulation
> > >frame-relay no ip mroute-cache frame-relay lmi-type ansi ! interface
> > >Serial0.1 multipoint ip address 10.0.0.3 255.255.255.0 no ip
> > >directed-broadcast ip ospf interface-retry 0 frame-relay interface-dlci
>101
> > >frame-relay interface-dlci 102 ! interface Serial0.2 point-to-point ip
> > >address 192.168.1.57 255.255.255.252 no ip directed-broadcast ip ospf
> > >interface-retry 0 frame-relay interface-dlci 103 ! interface Serial1 no
>ip
> > >address no ip directed-broadcast shutdown ! router ospf 1 network
>10.0.0.0
> > >0.0.0.255 area 0 network 192.168.1.8 0.0.0.3 area 0 network
>192.168.1.56
> > >0.0.0.3 area 0 ! ip classless ! ! ! line con 0 transport input none
>line
> > >aux 0 line vty 0 4 ! end
> > >
> > >R3#sho ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M
>-
> > >mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF
>inter
> > >area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1
>-
> > >OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1
>-
> > >IS-IS level-1, L2 - IS-IS level-2, * - candidate default U - per-user
> > >static route, o - ODR
> > >
> > >Gateway of last resort is not set
> > >
> > >10.0.0.0/24 is subnetted, 1 subnets C 10.0.0.0 is directly connected,
> > >Serial0.1 192.168.1.0/24 is variably subnetted, 3 subnets, 2 masks C
> > >192.168.1.56/30 is directly connected, Serial0.2 C 192.168.1.8/30 is
> > >directly connected, Loopback0 O 192.168.1.13/32 [110/65] via 10.0.0.4,
> > >18:42:08, Serial0.1 R3#sho ip ospf neigh
> > >
> > >Neighbor ID Pri State Dead Time Address Interface 10.0.0.5 1
>FULL/DROTHER
> > >00:01:53 10.0.0.5 Serial0.1 192.168.1.13 1 FULL/DR 00:01:50 10.0.0.4
> > >Serial0.1
> > >
> > >
> >
> >***************************************************************************
>*
> > >*******
> > >
> > >Router 4 (spoke):
> > >
> > >R4#sho run Building configuration...
> > >
> > >Current configuration: ! version 12.0 service timestamps debug uptime
> > >service timestamps log uptime no service password-encryption ! hostname
>R4
> > >! boot system flash ! ip subnet-zero ! ! ! ! ! interface Loopback0 ip
> > >address 192.168.1.13 255.255.255.252 no ip directed-broadcast ip ospf
> > >interface-retry 0 ! interface Ethernet0 ip address 10.1.1.8
>255.255.255.0
> > >no ip directed-broadcast ! interface Serial0 no ip address no ip
> > >directed-broadcast encapsulation frame-relay ! interface Serial0.1
> > >multipoint ip address 10.0.0.4 255.255.255.0 no ip directed-broadcast
>ip
> > >ospf interface-retry 0 frame-relay interface-dlci 101 ! interface
>Serial1
> > >no ip address no ip directed-broadcast shutdown ! router ospf 1 network
> > >10.0.0.0 0.0.0.255 area 0 network 192.168.1.12 0.0.0.3 area 0 ! ip
> > >classless ! ! ! line con 0 transport input none line aux 0 line vty 0 4
>!
> > >end
> > >
> > >R4#sho ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M
>-
> > >mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF
>inter
> > >area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1
>-
> > >OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1
>-
> > >IS-IS level-1, L2 - IS-IS level-2, * - candidate default U - per-user
> > >static route, o - ODR
> > >
> > >Gateway of last resort is not set
> > >
> > >10.0.0.0/24 is subnetted, 2 subnets C 10.0.0.0 is directly connected,
> > >Serial0.1 C 10.1.1.0 is directly connected, Ethernet0 192.168.1.0/24 is
> > >variably subnetted, 3 subnets, 2 masks O 192.168.1.56/30 [110/128] via
> > >10.0.0.3, 18:43:44, Serial0.1 O 192.168.1.9/32 [110/65] via 10.0.0.3,
> > >18:43:44, Serial0.1 C 192.168.1.12/30 is directly connected, Loopback0
> > >R4#sho ip ospf neigh
> > >
> > >Neighbor ID Pri State Dead Time Address Interface 192.168.1.9 1
>FULL/BDR
> > >00:01:35 10.0.0.3 Serial0.1
> > >
> >
> >***************************************************************************
>*
> > >****
> > >
> > >Router 5 (spoke):
> > >
> > >R5#sho run Building configuration...
> > >
> > >Current configuration: ! version 12.0 service timestamps debug uptime
> > >service timestamps log uptime no service password-encryption ! hostname
>R5
> > >! ! ip subnet-zero ! ! ! ! ! interface Loopback0 ip address
>192.168.1.17
> > >255.255.255.252 no ip directed-broadcast ip ospf interface-retry 0 !
> > >interface Ethernet0 no ip address no ip directed-broadcast shutdown !
> > >interface Serial0 no ip address no ip directed-broadcast encapsulation
> > >frame-relay no ip mroute-cache ! interface Serial0.1 multipoint ip
>address
> > >10.0.0.5 255.255.255.0 no ip directed-broadcast ip ospf interface-retry
>0
> > >frame-relay interface-dlci 102 ! interface Serial1 no ip address no ip
> > >directed-broadcast shutdown ! router ospf 1 network 10.0.0.0 0.0.0.255
>area
> > >0 network 192.168.1.16 0.0.0.3 area 0 ! ip classless ! ! ! line con 0
> > >transport input none line aux 0 line vty 0 4 ! end
> > >
> > >R5#sho ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M
>-
> > >mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF
>inter
> > >area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1
>-
> > >OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1
>-
> > >IS-IS level-1, L2 - IS-IS level-2, * - candidate default U - per-user
> > >static route, o - ODR
> > >
> > >Gateway of last resort is not set
> > >
> > >10.0.0.0/24 is subnetted, 1 subnets C 10.0.0.0 is directly connected,
> > >Serial0.1 192.168.1.0/30 is subnetted, 1 subnets C 192.168.1.16 is
>directly
> > >connected, Loopback0 R5#sho ip ospf neigh
> > >
> > >Neighbor ID Pri State Dead Time Address Interface 192.168.1.9 1 FULL/DR
> > _________________________________________________________________
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