From: Tim Fletcher (tim@fletchmail.net)
Date: Mon Feb 03 2003 - 12:15:48 GMT-3
This should help.
http://www.cisco.com/en/US/customer/tech/tk648/tk365/technologies_tech_note09186a00800943c5.shtml
-Tim Fletcher
At 11:29 PM 2/1/2003 -0600, Jason Cash wrote:
>Ok, I am at my wits end on this one.I am having a problem with
>redistribution on R7 with BGP into OSPF. The BGP table shows that I
>have 7 routes as does the Route table:
>
>R7#sb
>BGP table version is 8, local router ID is 200.200.200.1
>Status codes: s suppressed, d damped, h history, * valid, > best, i -
>internal
>Origin codes: i - IGP, e - EGP, ? - incomplete
>
> Network Next Hop Metric LocPrf Weight Path
>*> 137.20.10.0/24 0.0.0.0 0 32768 i
>*>i137.20.80.0/24 137.20.64.6 0 100 0 1 i
>*>i137.20.81.0/24 137.20.64.6 0 100 0 1 i
>*>i137.20.82.0/24 137.20.64.6 0 100 0 1 i
>*>i137.20.86.0/24 137.20.64.6 0 100 0 i
>*> 172.168.70.0/24 137.20.10.70 170 0 3 i
>*>i172.168.80.0/24 137.20.64.6 0 100 0 1 i
>
>R7#sh ip ro
>
>C 200.200.200.0/24 is directly connected, Loopback0
> 137.20.0.0/16 is variably subnetted, 16 subnets, 5 masks
>O E1 137.20.200.16/28 [110/164] via 137.20.25.2, 00:18:40, Serial1/5
>O IA 137.20.240.1/32 [110/65] via 137.20.25.2, 00:18:40, Serial1/5
>O IA 137.20.30.0/24 [110/138] via 137.20.25.2, 00:18:40, Serial1/5
>C 137.20.25.0/24 is directly connected, Serial1/5
>O IA 137.20.20.0/24 [110/138] via 137.20.25.2, 00:18:40, Serial1/5
>C 137.20.10.0/24 is directly connected, FastEthernet3/0/0
>O E1 137.20.40.16/28 [110/164] via 137.20.25.2, 00:18:41, Serial1/5
>O IA 137.20.33.0/26 [110/129] via 137.20.25.2, 00:18:41, Serial1/5
>B 137.20.86.0/24 [200/0] via 137.20.64.6, 00:03:44
>B 137.20.81.0/24 [200/0] via 137.20.64.6, 00:03:44
>B 137.20.80.0/24 [200/0] via 137.20.64.6, 00:03:44
>B 137.20.82.0/24 [200/0] via 137.20.64.6, 00:03:44
>O IA 137.20.100.33/32 [110/128] via 137.20.25.2, 00:18:41, Serial1/5
>O IA 137.20.100.35/32 [110/128] via 137.20.25.2, 00:18:41, Serial1/5
>O IA 137.20.100.34/32 [110/64] via 137.20.25.2, 00:18:41, Serial1/5
>O IA 137.20.64.0/20 [110/74] via 137.20.25.2, 00:18:41, Serial1/5
>O IA 200.200.100.0/24 [110/129] via 137.20.25.2, 00:18:41, Serial1/5
> 172.168.0.0/24 is subnetted, 2 subnets
>B 172.168.70.0 [20/170] via 137.20.10.70, 00:04:02
>B 172.168.80.0 [200/0] via 137.20.64.6, 00:03:44
>
>However, when I redistribute BGP into OSPF, the above BGP routes and not
>brought into OSPF on R5 : R7 (s2)----R5 (s1)
>
>R7
>router ospf 1
> log-adjacency-changes
> redistribute bgp 2 metric-type 2 subnets tag 7
>
>R5
>r5#si
>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, 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
>
> 200.200.200.0/32 is subnetted, 1 subnets
>O 200.200.200.1 [110/65] via 137.20.25.1, 00:01:39, Serial0
> 137.20.0.0/16 is variably subnetted, 12 subnets, 6 masks
>C 137.20.200.16/28 is directly connected, Serial1.2
>C 137.20.240.0/20 is directly connected, Loopback0
>O 137.20.30.0/24 [110/74] via 137.20.100.35, 00:01:39, Serial1.1
>C 137.20.25.0/24 is directly connected, Serial0
>O IA 137.20.20.0/24 [110/74] via 137.20.100.33, 00:01:39, Serial1.1
>O E2 137.20.10.0/24 [110/1] via 137.20.25.1, 00:01:40, Serial0
>I 137.20.40.16/28 [100/8576] via 137.20.200.18, 00:00:29,
>Serial1.2
>O IA 137.20.33.0/26 [110/65] via 137.20.100.35, 00:01:40, Serial1.1
>O 137.20.100.33/32 [110/64] via 137.20.100.33, 00:01:40, Serial1.1
>C 137.20.100.32/27 is directly connected, Serial1.1
>O 137.20.100.35/32 [110/64] via 137.20.100.35, 00:01:40, Serial1.1
>C 137.20.64.0/20 is directly connected, Ethernet0
>O 200.200.100.0/24 [110/65] via 137.20.100.33, 00:01:40, Serial1.1
> 172.168.0.0/24 is subnetted, 1 subnets
>O E2 172.168.70.0 [110/1] via 137.20.25.1, 00:01:40, Serial0
>
>There are two of the routes on R5 but not the other ones listed with an
>AD 200 on R7. What gives? I found another workaround (mutual
>redistribution on two routers) but I need to know why this doesn't work.
>Below is the 'sh ip ospf data' on R5. Please show me the light!
>
>r5#sh ip ospf data
>
> OSPF Router with ID (137.20.240.1) (Process ID 1)
>
>
> Router Link States (Area 0)
>
>Link ID ADV Router Age Seq# Checksum Link
>count
>137.20.33.33 137.20.33.33 1 (DNA) 0x80000005 0x7206 1
>137.20.60.1 137.20.60.1 536 0x80000031 0xD1AA 1
>137.20.240.1 137.20.240.1 29 0x8000003B 0xCED5 4
>200.200.100.1 200.200.100.1 5 (DNA) 0x80000009 0x840 1
>
> Net Link States (Area 0)
>
>Link ID ADV Router Age Seq# Checksum
>137.20.64.6 137.20.60.1 782 0x8000002C 0x9F55
>
> Summary Net Link States (Area 0)
>
>Link ID ADV Router Age Seq# Checksum
>137.20.20.0 200.200.100.1 51 (DNA) 0x80000001 0xA80
>137.20.25.0 137.20.240.1 1057 0x8000002C 0xA1E9
>137.20.30.0 137.20.33.33 1 (DNA) 0x80000001 0x9007
>137.20.30.0 137.20.240.1 1311 0x80000029 0xD4AA
>137.20.30.0 200.200.100.1 1 (DNA) 0x80000001 0xA05F
>137.20.33.0 137.20.33.33 1 (DNA) 0x80000001 0x9943
>137.20.100.33 137.20.33.33 1 (DNA) 0x80000001 0xE0D8
>137.20.100.33 137.20.240.1 545 0x8000002B 0x1C04
>137.20.100.33 200.200.100.1 51 (DNA) 0x80000001 0xE63C
>137.20.100.34 137.20.33.33 21 (DNA) 0x80000001 0x54A4
>137.20.100.34 137.20.240.1 1312 0x80000029 0x93CD
>137.20.100.34 200.200.100.1 51 (DNA) 0x80000001 0x5F82
>137.20.100.35 137.20.33.33 21 (DNA) 0x80000001 0xC770
>137.20.100.35 137.20.240.1 1312 0x80000029 0xC14
>137.20.100.35 200.200.100.1 51 (DNA) 0x80000001 0xD7C8
>200.200.100.0 137.20.33.33 1 (DNA) 0x80000001 0x875E
>200.200.100.0 137.20.240.1 545 0x8000002B 0xC289
>200.200.100.0 200.200.100.1 51 (DNA) 0x80000001 0x8DC1
>200.200.200.1 137.20.240.1 545 0x8000000C 0xA65F
>
> Summary ASB Link States (Area 0)
>
>Link ID ADV Router Age Seq# Checksum
>137.20.240.1 137.20.33.33 1 (DNA) 0x80000001 0x8705
>137.20.240.1 200.200.100.1 1 (DNA) 0x80000001 0x92E2
>200.200.200.1 137.20.240.1 1059 0x80000002 0xA26D
>
> Router Link States (Area 1)
>
>Link ID ADV Router Age Seq# Checksum Link
>count
>137.20.33.33 137.20.33.33 1747 0x8000002F 0x4402 3
>137.20.240.1 137.20.240.1 295 0x80000032 0x8976 3
>200.200.100.1 200.200.100.1 1566 0x8000003A 0xDB04 3
>
> Summary Net Link States (Area 1)
>
>Link ID ADV Router Age Seq# Checksum
>137.20.20.0 137.20.33.33 1501 0x80000005 0xFB21
>137.20.20.0 137.20.240.1 549 0x80000028 0x4545
>137.20.20.0 200.200.100.1 297 0x8000002D 0xB1AC
>137.20.25.0 137.20.33.33 1501 0x80000005 0x60C1
>137.20.25.0 137.20.240.1 1316 0x8000002A 0xA5E7
>137.20.25.0 200.200.100.1 1566 0x80000027 0x27C1
>137.20.33.0 137.20.33.33 1255 0x80000005 0x9147
>137.20.33.0 137.20.240.1 1062 0x80000005 0x26C2
>137.20.33.0 200.200.100.1 1065 0x80000005 0xA19F
>137.20.64.0 137.20.33.33 1501 0x80000005 0x48F7
>137.20.64.0 137.20.240.1 1317 0x8000002A 0x8D1E
>137.20.64.0 200.200.100.1 1567 0x80000027 0xFF7
>137.20.240.1 137.20.33.33 1502 0x80000005 0x97F0
>137.20.240.1 137.20.240.1 800 0x80000029 0xDE16
>137.20.240.1 200.200.100.1 1567 0x80000027 0x5EF0
>200.200.200.1 137.20.33.33 1502 0x80000005 0x2557
>200.200.200.1 137.20.240.1 550 0x8000000C 0xA65F
>200.200.200.1 200.200.100.1 298 0x8000000C 0x223C
>
> Summary ASB Link States (Area 1)
>
>Link ID ADV Router Age Seq# Checksum
>137.20.240.1 137.20.33.33 1502 0x80000005 0x7F09
>137.20.240.1 200.200.100.1 1817 0x8000000B 0x7EEC
>200.200.200.1 137.20.33.33 1256 0x80000002 0x136C
>200.200.200.1 137.20.240.1 1063 0x80000002 0xA26D
>200.200.200.1 200.200.100.1 1066 0x80000002 0x1E4A
>
> Router Link States (Area 2)
>
>Link ID ADV Router Age Seq# Checksum Link
>count
>137.20.240.1 137.20.240.1 296 0x8000002D 0x810A 2
>200.200.200.1 200.200.200.1 1154 0x8000002D 0x173E 3
>
> Summary Net Link States (Area 2)
>
>Link ID ADV Router Age Seq# Checksum
>137.20.20.0 137.20.240.1 551 0x80000028 0x4545
>137.20.30.0 137.20.240.1 1318 0x80000029 0xD4AA
>137.20.33.0 137.20.240.1 1064 0x80000005 0x26C2
>137.20.64.0 137.20.240.1 1064 0x8000002D 0x8721
>137.20.100.33 137.20.240.1 551 0x80000028 0x2201
>137.20.100.34 137.20.240.1 1320 0x80000029 0x93CD
>137.20.100.35 137.20.240.1 1320 0x80000029 0xC14
>137.20.240.1 137.20.240.1 803 0x80000029 0xDE16
>200.200.100.0 137.20.240.1 553 0x80000028 0xC886
>
> Type-5 AS External Link States
>
>Link ID ADV Router Age Seq# Checksum Tag
>137.20.10.0 200.200.200.1 156 0x80000001 0xA9FC 10
>137.20.40.16 137.20.240.1 1819 0x8000000B 0xBEB1 0
>137.20.200.16 137.20.240.1 299 0x8000000C 0xD5F8 0
>172.168.70.0 200.200.200.1 156 0x80000001 0x535F 10
>.
.
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