How do I find out the AS number my eBGP neighbour is using to peer with me?

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rajib_das Fri, 08/29/2008 - 02:35
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Hi lucy,


you can see the AS number of neighbor with "show ip bgp Summary" command


rajib

cisco_lad2004 Fri, 08/29/2008 - 05:15
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in addition to previous reply....u will get error message if u trying configure a differnet AS, I dont recommend it in case cisco removed this safety pin and allows the reconfig on a new AS :-)



TST-POP1-NPE01(config)#router bgp 65001

BGP is already running; AS is 64512

TST-POP1-NPE01(config)#


Giuseppe Larosa Fri, 08/29/2008 - 08:51
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Hello Lucy,

to see the AS number as seen by others do


sh run | beg router bgp


and look at the line that say

bgp confederation identifier that is the public AS number you are looking for


Hope to help

Giuseppe

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