From: Michael Jia (mjia@xxxxxxxxx)
Date: Sat May 04 2002 - 04:02:01 GMT-3
by default , only ebgp learned routes are redistributed into IGP.
To redistribute iBGP routes, you have to use
bgp redistribute-internal
in router bgp subcommands.
Doing this is very danguous, will cause all kinds of routing problems.
So be careful and aware of the consequences before you apply this command.
Michael
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Gerd Thuemmler
> Sent: Friday, May 03, 2002 11:37 PM
> To: ccielab@groupstudy.com
> Subject: redistribution (i)BGP -> OSPF (long, with config and show)
>
>
> Hi,
>
>
> i have a problem :-)
>
> I will redistribute from an iBGP-peer to OSPF. I think my problem is the
> redistribution from an iBGP-peer to OSPF, but i can't resolve it.
>
> Any hints or links?
>
> I see the networks in the BGP-table:
>
> BGP table version is 62, local router ID is 172.31.5.5
> 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
> *>i0.0.0.0 172.31.1.1 0 100 0 65254 ?
> * i 172.31.4.4 0 100 0 65254 ?
> *>i10.0.0.0 172.31.1.1 100 0 65254 i
> * i 172.31.4.4 100 0 65254 i
> *>i172.16.0.0/24 172.31.1.1 0 100 0 65254 i
> * i 172.31.4.4 0 100 0 65254 i
> *>i172.16.2.0/24 172.31.1.1 0 100 0 65254 i
> * i 172.31.4.4 0 100 0 65254 i
> *>i172.16.4.0/24 172.31.1.1 0 100 0 65254 i
> * i 172.31.4.4 0 100 0 65254 i
> *>i172.16.8.0/24 172.31.1.1 0 100 0 65254 i
> * i 172.31.4.4 0 100 0 65254 i
> *>i172.16.16.0/24 172.31.1.1 0 100 0 65254 i
> * i 172.31.4.4 0 100 0 65254 i
> *>i172.16.18.0/24 172.31.1.1 0 100 0 65254 i
> * i 172.31.4.4 0 100 0 65254 i
> *>i172.16.20.0/24 172.31.1.1 0 100 0 65254 i
> * i 172.31.4.4 0 100 0 65254 i
> *>i172.16.25.0/24 172.31.1.1 0 100 0 65254 i
> * i 172.31.4.4 0 100 0 65254 i
> *>i172.16.28.0/24 172.31.1.1 0 100 0 65254 i
> * i 172.31.4.4 0 100 0 65254 i
> *>i172.16.30.0/24 172.31.1.1 0 100 0 65254 i
> * i 172.31.4.4 0 100 0 65254 i
> *>i172.17.1.0/24 172.31.1.1 0 100 0 65254 i
> * i 172.31.4.4 0 100 0 65254 i
> *>i172.17.2.0/24 172.31.1.1 0 100 0 65254 i
> * i 172.31.4.4 0 100 0 65254 i
> *>i172.20.0.0 172.31.1.1 0 100 0 65254 i
> * i 172.31.4.4 0 100 0 65254 i
> *>i172.21.0.0 172.31.1.1 0 100 0 65254 i
> * i 172.31.4.4 0 100 0 65254 i
> *>i172.22.0.0 172.31.1.1 0 100 0 65254 i
> * i 172.31.4.4 0 100 0 65254 i
> *>i172.23.0.0 172.31.1.1 0 100 0 65254 i
> * i 172.31.4.4 0 100 0 65254 i
> *>i172.24.0.0 172.31.4.4 0 100 0 i
> *> 172.31.1.0/24 172.31.235.3 100 32768 i
> *> 172.31.2.0/24 172.31.235.3 792 32768 i
> *> 172.31.3.0/24 172.31.235.3 782 32768 i
> *> 172.31.4.0/24 172.31.45.4 80625 32768 i
> *> 172.31.5.0/24 0.0.0.0 0 32768 i
> *> 172.31.6.0/24 172.31.56.6 11 32768 i
> *> 172.31.12.0/24 172.31.235.3 100 32768 i
> *> 172.31.22.0/24 172.31.235.3 797 32768 i
> *> 172.31.23.0/24 172.31.235.3 791 32768 i
> *> 172.31.35.0/30 172.31.235.3 2343 32768 i
> *> 172.31.44.0/24 172.31.45.4 80188 32768 i
> *> 172.31.45.0/24 0.0.0.0 0 32768 i
> *> 172.31.55.0/24 0.0.0.0 0 32768 i
> *> 172.31.56.0/24 0.0.0.0 0 32768 i
> *> 172.31.66.0/24 172.31.56.6 20 32768 i
> *> 172.31.202.0/24 172.31.235.3 801 32768 i
> *> 172.31.222.0/24 172.31.235.3 816 32768 i
> *> 172.31.235.0/24 0.0.0.0 0 32768 i
> *>i192.168.100.0 172.31.1.1 0 100 0 65254 i
> * i 172.31.4.4 0 100 0 65254 i
> *>i192.168.199.0 172.31.1.1 0 100 0 65254 i
> * i 172.31.4.4 0 100 0 65254 i
> *>i192.168.200.0 172.31.1.1 0 100 0 65254 i
> * i 172.31.4.4 0 100 0 65254 i
>
> but i can't see the external networks (from BGP) in the OSPF dateabase:
>
>
> OSPF Router with ID (172.31.5.5) (Process ID 1)
>
>
> Router Link States (Area 0)
>
> Link ID ADV Router Age Seq# Checksum Link count
> 172.31.2.2 172.31.2.2 572 0x8000005E 0x52AD 3
> 172.31.3.3 172.31.3.3 543 0x8000005C 0x4D94 4
> 172.31.5.5 172.31.5.5 542 0x80000004 0x1A03 3
> 172.31.6.6 172.31.6.6 5 (DNA) 0x80000063 0xFF33 1
>
> Net Link States (Area 0)
>
> Link ID ADV Router Age Seq# Checksum
> 172.31.235.2 172.31.2.2 562 0x80000029 0xF8E9
> 172.31.235.3 172.31.3.3 543 0x80000001 0x45C0
>
> Summary Net Link States (Area 0)
>
> Link ID ADV Router Age Seq# Checksum
> 172.31.6.0 172.31.5.5 572 0x80000022 0xEC7C
> 172.31.6.0 172.31.6.6 11 (DNA) 0x80000001 0xBDD4
> 172.31.22.0 172.31.2.2 1572 0x8000004E 0xD85F
> 172.31.22.0 172.31.3.3 269 0x8000004E 0x30FB
> 172.31.23.0 172.31.2.2 552 0x80000053 0xEB42
> 172.31.23.0 172.31.3.3 269 0x80000050 0xE44A
> 172.31.56.0 172.31.5.5 572 0x80000028 0xAE83
> 172.31.56.0 172.31.6.6 11 (DNA) 0x80000001 0xEF67
> 172.31.66.0 172.31.6.6 11 (DNA) 0x80000001 0x81CB
> 172.31.202.0 172.31.2.2 1572 0x8000004E 0x3D42
> 172.31.202.0 172.31.3.3 269 0x8000004B 0x9ADB
> 172.31.222.0 172.31.2.2 1572 0x8000004E 0xF665
> 172.31.222.0 172.31.3.3 269 0x8000004E 0x4E02
>
> Summary ASB Link States (Area 0)
>
> Link ID ADV Router Age Seq# Checksum
> 172.31.2.2 172.31.3.3 269 0x8000004B 0xB491
> 172.31.5.5 172.31.6.6 11 (DNA) 0x80000001 0xE2A1
> 172.31.6.6 172.31.5.5 572 0x80000025 0x92CD
>
> Router Link States (Area 5)
>
> Link ID ADV Router Age Seq# Checksum Link count
> 172.31.5.5 172.31.5.5 634 0x80000003 0x8DD8 1
> 172.31.6.6 172.31.6.6 631 0x80000069 0xF720 2
>
> Net Link States (Area 5)
>
> Link ID ADV Router Age Seq# Checksum
> 172.31.56.6 172.31.6.6 637 0x80000001 0xF1B8
>
> Summary Net Link States (Area 5)
>
> Link ID ADV Router Age Seq# Checksum
> 172.31.2.0 172.31.5.5 537 0x80000001 0xF885
> 172.31.2.0 172.31.6.6 538 0x80000001 0x5022
> 172.31.3.0 172.31.5.5 537 0x80000001 0x89FD
> 172.31.3.0 172.31.6.6 538 0x80000001 0xE09A
> 172.31.5.0 172.31.5.5 644 0x80000001 0xD5BF
> 172.31.5.0 172.31.6.6 613 0x80000001 0x2D5C
> 172.31.22.0 172.31.5.5 537 0x80000001 0x4E17
> 172.31.22.0 172.31.6.6 538 0x80000001 0xA5B3
> 172.31.23.0 172.31.5.5 537 0x80000001 0x763
> 172.31.23.0 172.31.6.6 538 0x80000001 0x5EFF
> 172.31.35.0 172.31.5.5 537 0x80000001 0x4704
> 172.31.35.0 172.31.6.6 538 0x80000001 0x9EA0
> 172.31.66.0 172.31.5.5 614 0x80000001 0xF252
> 172.31.66.0 172.31.6.6 633 0x80000001 0x81CB
> 172.31.202.0 172.31.5.5 538 0x80000001 0xB2F9
> 172.31.202.0 172.31.6.6 539 0x80000001 0xA96
> 172.31.222.0 172.31.5.5 538 0x80000001 0x6C1D
> 172.31.222.0 172.31.6.6 539 0x80000001 0xC3B9
> 172.31.235.0 172.31.5.5 532 0x80000003 0x7924
> 172.31.235.0 172.31.6.6 534 0x80000003 0xD0C0
>
> Summary ASB Link States (Area 5)
>
> Link ID ADV Router Age Seq# Checksum
> 172.31.2.2 172.31.5.5 538 0x80000001 0xCCAF
> 172.31.2.2 172.31.6.6 539 0x80000001 0x244C
> 172.31.5.5 172.31.6.6 614 0x80000001 0xE2A1
> 172.31.6.6 172.31.5.5 615 0x80000001 0xDAA9
> 172.31.6.6 172.31.6.6 624 0x80000001 0x4B61
>
> Type-5 AS External Link States
>
> Link ID ADV Router Age Seq# Checksum Tag
> 172.17.1.0 172.31.2.2 1575 0x8000004D 0xC2B1 1
> 172.18.0.0 172.31.2.2 1575 0x8000004D 0xB2C4 1
> 172.18.0.255 172.31.2.2 1575 0x8000004D 0xC1B2 1
> 172.18.1.0 172.31.2.2 1575 0x8000004D 0xB6BC 1
> 172.18.2.0 172.31.2.2 1575 0x8000004D 0xABC6 1
> 172.18.3.0 172.31.2.2 1575 0x8000004D 0xA0D0 1
> 172.19.1.0 172.31.6.6 1373 0x8000004D 0x4D98 6
> 172.31.1.0 172.31.2.2 1575 0x8000004D 0x1A4C 1
> 172.31.4.0 172.31.5.5 645 0x80000001 0x653A 4
> 172.31.12.0 172.31.2.2 1575 0x8000004D 0xA0BA 1
> 172.31.21.0 172.31.2.2 1575 0x8000004D 0x3D15 1
> 172.31.44.0 172.31.5.5 638 0x80000026 0x61F0 4
> 172.31.45.0 172.31.5.5 600 0x80000027 0x8F44 0
> 172.31.55.0 172.31.5.5 600 0x80000002 0x6B83 0
> 192.168.0.0 172.31.2.2 1064 0x80000028 0xF7F6 1
> 192.168.2.0 172.31.2.2 1064 0x80000028 0xE10B 1
> 192.168.4.0 172.31.2.2 1064 0x80000028 0xCB1F 1
> 192.168.6.0 172.31.2.2 1064 0x80000028 0xB533 1
> 192.168.8.0 172.31.2.2 1064 0x80000028 0x9F47 1
>
> the config (IOS 12.1(14) IP plus), thist router is a reflector
> client from
> an eBGP-peer:
>
> Building configuration...
> !
> router ospf 1
> log-adjacency-changes
> area 5 virtual-link 172.31.6.6
> redistribute bgp 65031 subnets
> network 172.31.5.0 0.0.0.255 area 0
> network 172.31.56.0 0.0.0.255 area 5
> network 172.31.235.0 0.0.0.255 area 0
> neighbor 172.31.235.3 priority 1
> neighbor 172.31.235.2 priority 1
> default-metric 1000
> !
> router bgp 65031
> no synchronization
> bgp log-neighbor-changes
> network 172.31.1.0 mask 255.255.255.0
> network 172.31.2.0 mask 255.255.255.0
> network 172.31.3.0 mask 255.255.255.0
> network 172.31.4.0 mask 255.255.255.0
> network 172.31.5.0 mask 255.255.255.0
> network 172.31.6.0 mask 255.255.255.0
> network 172.31.12.0 mask 255.255.255.0
> network 172.31.22.0 mask 255.255.255.0
> network 172.31.23.0 mask 255.255.255.0
> network 172.31.35.0 mask 255.255.255.252
> network 172.31.44.0 mask 255.255.255.0
> network 172.31.45.0 mask 255.255.255.0
> network 172.31.55.0 mask 255.255.255.0
> network 172.31.56.0 mask 255.255.255.0
> network 172.31.66.0 mask 255.255.255.0
> network 172.31.202.0 mask 255.255.255.0
> network 172.31.222.0 mask 255.255.255.0
> network 172.31.235.0 mask 255.255.255.0
> neighbor intern peer-group
> neighbor intern update-source Loopback0
> neighbor intern next-hop-self
> neighbor 172.31.1.1 remote-as 65031
> neighbor 172.31.1.1 peer-group intern
> neighbor 172.31.4.4 remote-as 65031
> neighbor 172.31.4.4 peer-group intern
> no auto-summary
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:58:50 GMT-3