At 01:53 AM 4/6/2003 +, Bullwinkle wrote:
In other words, for purposes of testing, there are ONLY two ways to remove
things from the AS_PATH. 1) the technique you describe, which is to create
Both these techniques are invalid in my opinion. If you create a new
route, you haven't changed the
I have to agree that it is a bit silly, dangerous, and should not be done on
a production enviornment.. but so are a lot of scenarios on the CCIE Lab..
Just to add to the sillyness:
Not sure how this would work, but you can try it.. have you tried as-path
manupulation? From what I can see you
At 04:22 PM 4/2/2003 -0500, you wrote:
150.50.200.0(R1)(R2)--(R3).
R1 belongs to AS1
R2 belongs to AS2
R3 belongs to AS3
I inject 150.50.200.0 using the network command on R1 and see 150.50.200.0
in R3 with as_path of 2 1.
The question is how can I remove the 1 from the As Path on R3.
At 08:26 PM 4/5/2003 +, Salvatore De Luca wrote:
I have to agree that it is a bit silly, dangerous, and should not be done on
a production enviornment.. but so are a lot of scenarios on the CCIE Lab..
Just to add to the sillyness:
Because it is silly and dangerous, you also can't do it
I hear ya.. that's why if this was a TEST situation, the statement:
ip as-path access-list 1 permit _2_ ! _2_ _1$ would permit routes
traversing AS2 but deny any routes traversed though AS2 Originating in AS1.
In which case 150.50.200.0 aggregated element should be the nlri Fresh
Route point for
In other words, for purposes of testing, there are ONLY two ways to remove
things from the AS_PATH. 1) the technique you describe, which is to create
an aggregate and advertise that aggregate only ( although refresh my
memory - an aggregate might still contain full AS_PATH information - don't
have
Agreed by me.. the trick is it seems that we want to remove AS1 from the
AS-path without filtering the whole IP Block. As long as AS2 Can Create the
route you want advertised to R3,(Network Statments pointing to Null route
injections will do this and put it in the BGP table). You can then filter
7 matches
Mail list logo
