IEWB , LAB 3, Task 6.5

From: Kumar, Manoj (manoj.kumar@citigroup.com)
Date: Sat Jun 04 2005 - 19:38:50 GMT-3


Hi Gents,

My question is with reference to Task 6.5/6.6in IEWB Vol I, Lab 3.

The tasks, in brief, ask us to ensure AS 100 doesn't allow a transit for traffic fromAS 300 and AS 200 towards
AS 54. The configuraiton should be done only on R6 in AS 100.

AS 200 (R5) --------- ------ (R1) ------- AS 54 (BB1)
                    -------- AS 100 (R6)-------
AS 300 (R2)---------- ------ (R3) ------- AS 54 (BB3)

IEWB Solution Guide Suggests to using COMMUNITY (inbound) on the neighbor statement towards the two AS 54 EBGP Peers (BB1 and BB3).

If I choose to use 'ip as-path access-list 10 permit ^$ ' using route-maps on to those BB routers , do you think that will be a correct solution - AS 100 will forward only the local-AS routes to AS54 and will not become a transit

Appreciate your valuable comments please.

Thanks,
manoj



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