From: Tan Chai Heng (tanch@kuala-lumpur.sns.slb.com)
Date: Wed Oct 15 2003 - 11:32:01 GMT-3
>"Also within you neighbor statement for neigh 22.22.22.22 (I presume this
>is router 2) you do not need ebgp-multihop command since its iBGP...
>That gonna cost you points on your exam ... ;-)"
Ronald,
Whoa, so if we have additional command in the configuration (ie more than
optimal), even though we have all the other commands that adhere to the
question and the solution works, we will still get penalized for that???
Meaning the minimum config that will solve the problem has only 3 lines,
but we have the 3 and add another one, we're hosed??
Cheers!
CH
>-----Original Message-----
>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
>Ken.Farrington@barclayscapital.com
>Sent: woensdag 15 oktober 2003 13:14
>To: ccielab@groupstudy.com
>Subject: BGP Route-Map Question.
>
>
>+--------------+
>| AS1 |
>| +----+ |
>| | R2 | |
>| +----+ |
>| | |
>| | |
>| | |
>| +----+ |
>| | R1 | |
>| +----+ |
>| | |
>+------|-------+
> |
>+------|--------+
>| +----+ |
>| | R3 | |
>| +----+ |
>| AS2 |
>+---------------+
>
>
>Simple BGP Scenario/
>
>I have multiple routes being asvertised via BGP from R2 throught the ASs
>I want to summarise the routes to one single route on R1 so it
>advertises as summary to R3 in AS2.
>
>I also, want to stop this summary from being advertised back into AS1. I
>can do this with a neighbor route map, but which route-map is correct.
>
>They both work, and I am panicing becuase what they may ask in the lab,
>I may do one way and they expect another.
>
>
>Many thx in advanced for any tips
>Ken
>
>
>!
>router bgp 620
> no synchronization
> bgp log-neighbor-changes
> bgp confederation identifier 600
> aggregate-address 142.220.0.0 255.255.0.0 summary-only neighbor
>22.22.22.22 remote-as 620 neighbor 22.22.22.22 ebgp-multihop 255
>neighbor 22.22.22.22 update-source Loopback0 neighbor 22.22.22.22
>route-map NO-SUMMARY out neighbor 33.33.33.33 remote-as 500 neighbor
>33.33.33.33 ebgp-multihop 255 neighbor 33.33.33.33 update-source
>Loopback0 ! access-list 18 permit 142.220.0.0 ! route-map NO-SUMMARY
>deny 10 match ip address 18 ! route-map NO-SUMMARY permit 20
>
>
>----------------or---------------------
>
>access-list 18 deny 142.220.0.0
>access-list 18 permit any
>
>!
>route-map DENY-SUMM permit 10
> match ip address 18
>!
>
>
>
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