From: Hunt Lee (huntl@webcentral.com.au)
Date: Wed Feb 19 2003 - 21:51:57 GMT-3
Just got a funny stuff. Remember how they said that with "bgp
redistribute-internal", one can then redistribute IBGP routes into IGP (like
OSPF).
Well... I just got a wierd one, perhaps some of you can try. Here is the
topology
r4---EBGP---r3---OSPF Frame---r1---OSPF Frame---r5---NSSA---r6
So now, what I did, I put a "redistribute bgp 3" at r5 under OSPF process,
but the
IBGP route just doesn't want to get into the NSSA area.
router ospf 1
log-adjacency-changes
area 4 authentication
area 4 nssa default-information-originate
area 4 default-cost 20
redistribute bgp 3 metric 20 subnets
network 10.10.1.5 0.0.0.0 area 0
network 11.1.1.5 0.0.0.0 area 4
router bgp 3
no synchronization
bgp redistribute-internal
bgp log-neighbor-changes
neighbor 10.10.1.1 remote-as 3
Here is the routing table of r5
B 200.200.200.0/24 [200/0] via 10.10.1.3, 03:33:03
137.20.0.0/24 is subnetted, 1 subnets
O IA 137.20.20.0 [110/138] via 10.10.1.1, 00:00:25, Serial0
22.0.0.0/24 is subnetted, 1 subnets
B 22.1.1.0 [200/0] via 10.20.1.1, 00:51:42
10.0.0.0/8 is variably subnetted, 11 subnets, 4 masks
O 10.10.1.1/32 [110/64] via 10.10.1.1, 00:00:26, Serial0
C 10.10.0.0/16 is directly connected, Serial0
O 10.10.1.3/32 [110/128] via 10.10.1.1, 00:00:26, Serial0
O IA 10.3.1.1/32 [110/129] via 10.10.1.1, 00:00:27, Serial0
O IA 10.1.0.0/17 [110/65] via 10.10.1.1, 00:00:27, Serial0
O IA 10.4.0.0/16 [110/202] via 10.10.1.1, 00:00:27, Serial0
O IA 10.20.0.0/16 [110/128] via 10.10.1.1, 00:00:27, Serial0
O IA 10.44.1.1/32 [110/193] via 10.10.1.1, 00:00:28, Serial0
B 10.44.0.0/16 [200/0] via 10.10.1.3, 03:33:05
O IA 10.34.0.0/16 [110/192] via 10.10.1.1, 00:00:28, Serial0
O IA 10.33.1.0/25 [110/129] via 10.10.1.1, 00:00:28, Serial0
11.0.0.0/16 is subnetted, 4 subnets
O N1 11.3.0.0 [110/21] via 11.1.1.6, 00:00:28, Ethernet0
O N1 11.2.0.0 [110/21] via 11.1.1.6, 00:00:28, Ethernet0
C 11.1.0.0 is directly connected, Ethernet0
O N1 11.4.0.0 [110/21] via 11.1.1.6, 00:00:28, Ethernet0
30.0.0.0/24 is subnetted, 1 subnets
B 30.1.2.0 [200/0] via 10.10.1.3, 03:33:05
O*E2 0.0.0.0/0 [110/1] via 10.10.1.1, 00:00:28, Serial0
R5#
ANd here is the OSPF database
Type-7 AS External Link States (Area 4)
Link ID ADV Router Age Seq# Checksum Tag
0.0.0.0 11.1.1.5 1167 0x80000008 0x66D 0
10.44.0.0 11.1.1.5 670 0x80000002 0x336 2
11.2.0.0 11.2.1.1 910 0x80000006 0x845E 0
11.3.0.0 11.2.1.1 910 0x80000006 0x7869 0
11.4.0.0 11.2.1.1 910 0x80000006 0x6C74 0
22.1.1.0 11.1.1.5 671 0x80000002 0xDB85 0
30.1.2.0 11.1.1.5 671 0x80000002 0xED60 2
200.200.200.0 11.1.1.5 671 0x80000002 0x5BB9 2
Type-5 AS External Link States
Link ID ADV Router Age Seq# Checksum Tag
0.0.0.0 10.20.1.1 1052 0x80000007 0x2765 1
10.44.0.0 11.1.1.5 672 0x80000002 0xE470 2
11.2.0.0 11.1.1.5 50 0x80000001 0x13DB 0
11.3.0.0 11.1.1.5 50 0x80000001 0x7E6 0
11.4.0.0 11.1.1.5 50 0x80000001 0xFAF1 0
22.1.1.0 11.1.1.5 672 0x80000002 0x1F56 0
30.1.2.0 11.1.1.5 672 0x80000002 0xCF9A 2
200.200.200.0 11.1.1.5 672 0x80000002 0x3DF3 2
R5#
And for r6's OSPF database:
Type-7 AS External Link States (Area 4)
Link ID ADV Router Age Seq# Checksum Tag
0.0.0.0 11.1.1.5 1204 0x80000008 0x00066D 0
10.44.0.0 11.1.1.5 708 0x80000002 0x000336 2
11.2.0.0 11.2.1.1 946 0x80000006 0x00845E 0
11.3.0.0 11.2.1.1 946 0x80000006 0x007869 0
11.4.0.0 11.2.1.1 946 0x80000006 0x006C74 0
22.1.1.0 11.1.1.5 708 0x80000002 0x00DB85 0
30.1.2.0 11.1.1.5 708 0x80000002 0x00ED60 2
200.200.200.0 11.1.1.5 708 0x80000002 0x005BB9 2
R6#
But nothing shows up in routing table of r6
R6#sh ip route 200.200.200.0
% Network not in table
R6#
Any help / ideas would be greatly appreciated.
Regards,
Hunt
-- WebCentral Pty Ltd Australia's #1 Internet Web Hosting Company Level 1, 96 Lytton Road. Network Operations - Systems Engineer PO Box 4169, East Brisbane. email: huntl@webcentral.com.au Queensland, Australia. phone: +61 7 3249 2553
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