From: Uchil Perera (uchil.groupstudy@yahoo.com)
Date: Sun Jan 06 2008 - 17:10:55 ARST
Hi,
If I understand your problem correctly, you are trying to form an adjacency between Point-to-Multipoint and NBMA interfaces.
This will not work properly as P-to-MP and NBMA network types are not compatible, even if you change the hello and dead interval's to match each side. You can make it work between the below listed network types by changing the timers.
Broadcast and NBMA
Point-to-Point and Point-to-Multipoint
Regards
Uchil
CCIE # 18536
ladeegeek@gmail.com wrote:
Hi all -
I've been working with forming ospf neighbors with different interface types. I'm currently trying to work out a "glitch" between an NMBA and Point-to-multipoint interface. I get neighborship, my database is populated, BUT the database doesn't populate the routing table. See below. If I make all the interfaces point-to-mulitpoint I get the same database and my routing table populates??
router ospf 1
router-id 150.1.1.1
log-adjacency-changes
network 132.1.0.0 0.0.0.255 area 0
network 132.1.17.0 0.0.0.255 area 0
network 150.1.1.1 0.0.0.0 area 0
neighbor 132.1.0.2
neighbor 132.1.0.4
interface Serial1/0
ip address 132.1.0.1 255.255.255.0
encapsulation frame-relay
ip ospf network non-broadcast
ip ospf priority 255
serial restart-delay 0
no fair-queue
no frame-relay inverse-arp IP 103
!
R1#sho ip ospf neigh
Neighbor ID Pri State Dead Time Address Interface
150.1.7.7 1 FULL/DR 00:00:32 132.1.17.7 Ethernet0/0
150.1.2.2 0 FULL/DROTHER 00:01:53 132.1.0.2 Serial1/0
150.1.4.4 0 FULL/DROTHER 00:01:53 132.1.0.4 Serial1/0
!
R1#sho ip ospf dat
OSPF Router with ID (150.1.1.1) (Process ID 1)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
150.1.1.1 150.1.1.1 11 0x80000004 0x00DBDC 3
150.1.2.2 150.1.2.2 13 0x80000003 0x00578A 4
150.1.3.3 150.1.3.3 102 0x80000002 0x003AF7 5
150.1.4.4 150.1.4.4 11 0x80000003 0x0021AF 4
150.1.7.7 150.1.7.7 88 0x80000002 0x002180 1
Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
132.1.0.1 150.1.1.1 11 0x80000001 0x00D967
132.1.17.7 150.1.7.7 88 0x80000001 0x007344
Summary Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
132.1.26.0 150.1.2.2 83 0x80000003 0x00965F
204.12.1.0 150.1.7.7 129 0x80000001 0x003D76
Type-5 AS External Link States
Link ID ADV Router Age Seq# Checksum Tag
132.1.23.0 150.1.3.3 134 0x80000001 0x00A8BD 0
132.1.33.0 150.1.3.3 136 0x80000001 0x003A22 0
R1#
R1#sho ip route
Codes: C - connected, S - static, 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
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
O IA 204.12.1.0/24 [110/20] via 132.1.17.7, 00:02:06, Ethernet0/0
132.1.0.0/24 is subnetted, 2 subnets
C 132.1.0.0 is directly connected, Serial1/0
C 132.1.17.0 is directly connected, Ethernet0/0
150.1.0.0/24 is subnetted, 1 subnets
C 150.1.1.0 is directly connected, Loopback0
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