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BGP ATTRIBUTE LOCAL PREFERENCE
WRITTEN BY RENE MOLENAAR ON�01 AUGUST 2011. POSTED IN�BGP
SCENARIO:
You work as a network engineer for a laboratium in San Francisco which is specialized in genetic engineering. To exchange research information with other laboratoria and universities you have built a network using�BGP. At this moment you have not configured any path selection for BGP and you want to make sure you have a little more control to influence your routing. Local preference is one of the BGP attributes that you are going to use to fix this.
GOAL:
* All IP addresses have been preconfigured for you as specified in the topology picture.
* Configure�IBGP�within AS 1.
* Configure�EBGP�between router Franklin and Jacobs.
* Configure EBGP between router Jacobs and Pinto.
* Configure EBGP between router Pinto and Franco.
* Configure EBGP between router Hunisker and Franco.
* Advertise all networks from AS1, AS2, AS3 and AS4 in BGP.
* Ensure AS1 can reach any network in AS2, AS3 or AS4.
* You are only allowed to use the local preference attribute for the upcoming tasks.
* Configure router Franklin so all networks learned through EBGP have a local preference of 500.
* Configure router Hunisker so network 6.6.6.0/24 has a local preference of 600.
* Configure router Hunisker so all networks from AS 4 have a local preference of 700.
* Configure router Hunisker so network 66.66.66.0/24 has a local preference of 800, you are not allowed to use an access-list.
IOS:
c3640-jk9o3s-mz.124-16.bin