Team,
I would appreciate some help and validation to some of my thoughs with this
task.
1- Validation:
The first route, 72.164.224.0 could alternatively be advertised by R1 to R2
with a community of no-export through a route-map.
Ex.
R1
router bgp 1
redistribute static route-map 72-route out
neighbor 10.0.0.2 send-community
!
route-map 72-route permit 10
match ip add 72
set community no-export
route-map 72-route permit 20
set community none
!
acees-list 72 permit 72.164.224.0
----------------------------------------------------------------------------------
2- Validation:
When configuring R2 to advertise the routes to the confederation AS 30, a sigle
line ACL could be used to advertise the routes with the first octect of 56 as
follows.
Access-list permit 22 permit 56.0.0.0 0.255.255.255
----------------------------------------------------------------------------------
3- I am completely lost here with the ACL 179....PG page 304.
I undestand the logic used but I just can not figure out how the solution ends
up with the two ACLs.
ip access-list 179 deny ip host 88.164.24.0 any
! Where does this come from? It looks like it is an ACL within a range [see
below ] but should not be there and consequently is being romoved...
ip access-list 179 permit 72.164.208.0 16.8.32.0 host 255.255.255.0
! This seems to be the whole range of routes to be in the routing tables of ALL
routers [starting with 72.164.208.0/24 to 88.172.240.0/24 ]. This range
includes the network denied above in the 1st instance of the ACL 179
[88.164.24.0]...but again I do not see how it is included and consequently had
to be removed.
I know it was long but could not find a better way...
Thanks guys.
Bauke
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