Re: IEWB 4.1 Lab1 BGP route-reflector-client

Hi Lejoe,

Thanks for your reply. I found out I did a mistake on the IGP routing which
cause 54.1.1.254 network unreachable. After fixing the IGP, the BGP looks as
what it should.

Many thanks!!

Cheers,
rpratikno

On Thu, Aug 6, 2009 at 11:45 AM, Lejoe <styran_at_gmail.com> wrote:

> Rianto,
>
> Route reflector only reflects best routes to clients. First check, if
> next-hop 54.1.1.254 is reachable from R3.
> i.e sh ip route 54.1.1.254
>
> Lejoe
>
> On Thu, Aug 6, 2009 at 11:29 AM, Rianto Pratikno <
> rpratikno.cisco_at_gmail.com> wrote:
>
>> Hi guys,
>>
>> I just started my lab journey, I'm sorry if I ask any questions that has
>> been asked before.
>>
>> I'm doing IEWB 4.1 vol 2 Lab 1 BGP section using dynamips. Although it's
>> not
>> on the task but I have a question about the route-reflector-client
>> configuration to clarify my knowledge.
>>
>> From the topology requirement, R5 is the Route Reflector for R3, R4, R6
>> for
>> AS 100. R3 & R6 are connected to AS 54. The task mainly to configure local
>> preference to advertise from R6 & BB3 link. The question is, why I can't
>> see
>> the route advertised from R6 with local preference 200 at R4? Is this my
>> miss configuration or it is how the Route Reflector work? Or is this due
>> to
>> I'm using dynamips?
>>
>> Thank you very much for all comments in advance. Any comment is much
>> appreciated.
>>
>> Cheers,
>> rpratikno
>>
>> BB1 -- R3 --- R5 -- R6 -- BB3
>> |
>> R4
>>
>> Rack1R3#sh run | begin bgp
>> router bgp 100
>> no synchronization
>> bgp router-id 150.1.3.3
>> bgp log-neighbor-changes
>> neighbor 183.1.0.5 remote-as 100
>> neighbor 183.1.123.2 remote-as 200
>> neighbor 204.12.1.254 remote-as 54
>> no auto-summary
>>
>> Rack1R4#sh run | begin bgp
>> router bgp 100
>> no synchronization
>> bgp router-id 150.1.4.4
>> bgp log-neighbor-changes
>> neighbor 150.1.5.5 remote-as 100
>> neighbor 150.1.5.5 update-source Loopback0
>> no auto-summary
>>
>> Rack1R5#sh run | begin bgp
>> router bgp 100
>> no synchronization
>> bgp router-id 150.1.5.5
>> bgp log-neighbor-changes
>> neighbor 150.1.4.4 remote-as 100
>> neighbor 150.1.4.4 update-source Loopback0
>> neighbor 150.1.4.4 route-reflector-client
>> neighbor 150.1.6.6 remote-as 100
>> neighbor 150.1.6.6 update-source Loopback0
>> neighbor 150.1.6.6 route-reflector-client
>> neighbor 183.1.0.3 remote-as 100
>> neighbor 183.1.0.3 route-reflector-client
>> neighbor 183.1.0.3 next-hop-self
>> neighbor 183.1.105.10 remote-as 200
>> no auto-summary
>>
>> Rack1R6#sh run | begin bgp
>> router bgp 100
>> no synchronization
>> bgp router-id 150.1.6.6
>> bgp log-neighbor-changes
>> neighbor 54.1.1.254 remote-as 54
>> neighbor 54.1.1.254 route-map AS-54 in
>> neighbor 150.1.5.5 remote-as 100
>> neighbor 150.1.5.5 update-source Loopback0
>> no auto-summary
>> !
>> ip as-path access-list 54 permit _54$
>> !
>> !
>> route-map CONNECTED_VLAN6 permit 10
>> match interface Ethernet0/1
>> !
>> route-map AS-54 permit 10
>> match as-path 54
>> set local-preference 200
>> !
>> route-map AS-54 permit 1000
>>
>>
>>
>> Rack1R6#sh ip bgp
>> BGP table version is 16, local router ID is 150.1.6.6
>> Status codes: s suppressed, d damped, h history, * valid, > best, i -
>> internal,
>> r RIB-failure, S Stale
>> Origin codes: i - IGP, e - EGP, ? - incomplete
>>
>> Network Next Hop Metric LocPrf Weight Path
>> *> 28.119.16.0/24 54.1.1.254 200 0 54 i
>> * i 204.12.1.254 0 100 0 54 i
>> *> 28.119.17.0/24 54.1.1.254 200 0 54 i
>> * i 204.12.1.254 0 100 0 54 i
>> * i112.0.0.0 204.12.1.254 0 100 0 54 50 60 i
>> *> 54.1.1.254 0 0 54 50 60 i
>> * i113.0.0.0 204.12.1.254 0 100 0 54 50 60 i
>> *> 54.1.1.254 0 0 54 50 60 i
>> * i114.0.0.0 204.12.1.254 0 100 0 54 i
>> *> 54.1.1.254 0 200 0 54 i
>> * i115.0.0.0 204.12.1.254 0 100 0 54 i
>> *> 54.1.1.254 0 200 0 54 i
>> * i116.0.0.0 204.12.1.254 0 100 0 54 i
>> *> 54.1.1.254 0 200 0 54 i
>> * i117.0.0.0 204.12.1.254 0 100 0 54 i
>> *> 54.1.1.254 0 200 0 54 i
>> * i118.0.0.0 204.12.1.254 0 100 0 54 i
>> *> 54.1.1.254 0 200 0 54 i
>> * i119.0.0.0 204.12.1.254 0 100 0 54 i
>> *> 54.1.1.254 0 200 0 54 i
>> *>i205.90.31.0 183.1.105.10 0 100 0 200 254 ?
>> *>i220.20.3.0 183.1.105.10 0 100 0 200 254 ?
>> *>i222.22.2.0 183.1.105.10 0 100 0 200 254 ?
>>
>> Rack1R5#sh ip bgp
>> BGP table version is 14, local router ID is 150.1.5.5
>> Status codes: s suppressed, d damped, h history, * valid, > best, i -
>> internal,
>> r RIB-failure, S Stale
>> Origin codes: i - IGP, e - EGP, ? - incomplete
>>
>> Network Next Hop Metric LocPrf Weight Path
>> * i28.119.16.0/24 54.1.1.254 0 200 0 54 i
>> *>i 204.12.1.254 0 100 0 54 i
>> * i28.119.17.0/24 54.1.1.254 0 200 0 54 i
>> *>i 204.12.1.254 0 100 0 54 i
>> *>i112.0.0.0 204.12.1.254 0 100 0 54 50 60 i
>> * i 54.1.1.254 0 100 0 54 50 60 i
>> *>i113.0.0.0 204.12.1.254 0 100 0 54 50 60 i
>> * i 54.1.1.254 0 100 0 54 50 60 i
>> *>i114.0.0.0 204.12.1.254 0 100 0 54 i
>> * i 54.1.1.254 0 200 0 54 i
>> *>i115.0.0.0 204.12.1.254 0 100 0 54 i
>> * i 54.1.1.254 0 200 0 54 i
>> *>i116.0.0.0 204.12.1.254 0 100 0 54 i
>> * i 54.1.1.254 0 200 0 54 i
>> *>i117.0.0.0 204.12.1.254 0 100 0 54 i
>> * i 54.1.1.254 0 200 0 54 i
>> *>i118.0.0.0 204.12.1.254 0 100 0 54 i
>> * i 54.1.1.254 0 200 0 54 i
>> *>i119.0.0.0 204.12.1.254 0 100 0 54 i
>> * i 54.1.1.254 0 200 0 54 i
>> * i205.90.31.0 183.1.123.2 0 100 0 200 254 ?
>> *> 183.1.105.10 0 200 254 ?
>> * i220.20.3.0 183.1.123.2 0 100 0 200 254 ?
>> *> 183.1.105.10 0 200 254 ?
>> * i222.22.2.0 183.1.123.2 0 100 0 200 254 ?
>> *> 183.1.105.10 0 200 254 ?
>>
>>
>> Rack1R4#sh ip bgp
>> BGP table version is 20, local router ID is 150.1.4.4
>> Status codes: s suppressed, d damped, h history, * valid, > best, i -
>> internal,
>> r RIB-failure, S Stale
>> Origin codes: i - IGP, e - EGP, ? - incomplete
>>
>> Network Next Hop Metric LocPrf Weight Path
>> *>i28.119.16.0/24 204.12.1.254 0 100 0 54 i
>> *>i28.119.17.0/24 204.12.1.254 0 100 0 54 i
>> *>i112.0.0.0 204.12.1.254 0 100 0 54 50 60 i
>> *>i113.0.0.0 204.12.1.254 0 100 0 54 50 60 i
>> *>i114.0.0.0 204.12.1.254 0 100 0 54 i
>> *>i115.0.0.0 204.12.1.254 0 100 0 54 i
>> *>i116.0.0.0 204.12.1.254 0 100 0 54 i
>> *>i117.0.0.0 204.12.1.254 0 100 0 54 i
>> *>i118.0.0.0 204.12.1.254 0 100 0 54 i
>> *>i119.0.0.0 204.12.1.254 0 100 0 54 i
>> *>i205.90.31.0 183.1.105.10 0 100 0 200 254 ?
>> *>i220.20.3.0 183.1.105.10 0 100 0 200 254 ?
>> *>i222.22.2.0 183.1.105.10 0 100 0 200 254 ?
>>
>>
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Received on Thu Aug 06 2009 - 14:56:01 ART