RE: BGP help needed., [7:62736]

[Casey, Paul (6822)]

Hello, 

I have the practise lab I am working on.
3 routers in lab,

AS100 --AS200-AS300

I have a loopback 1.1.1.1 in AS100 and I want to advertise it to AS200 who
in turn will advertise it to AS300. When it arrives in AS300 it has to look
like it originated in AS200 and NOT for AS300.
This needs be achieved with 1 command on AS200. 

Anyone any idea how to do get this to work,
Can this be done,..??

Kind regards,
Paul.




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RE: BGP help needed., [7:62736]

[p b]

Don't have any gear to test this on, but what if you
put a "network 1.1.1.1 mask 255.255.255.255" in your
AS 200--AS300 eBGP peer?   The route received from AS100
will populate the routing table and thus cause AS200's
network statement to be satisfied and thus advertised.
This may make 1.1.1.1 to appear, at AS300, to originate
from both AS100 and AS200...


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