distribution-list behavior

[libra_ali786]

I just apply distribute-lst out on the EIGRP 100 domain and also redistribute eigrp 100 network into Rip domain.

I noticed that my 1.1.1.1 network was blocked inside EIGRP 100 domain but it was redistributed into Rip domain.

is it default behavior ?

R1

router eigrp 100
distribute-list 2 out
network 1.1.1.0 0.0.0.255
network 40.40.40.0 0.0.0.255
redistribute rip metric 1500 1 1 1 1500 route-map TAGG

!

router rip
version 2
redistribute eigrp 100 metric 5
network 20.0.0.0
network 30.0.0.0

!

access-list 2 deny 1.1.1.0 0.0.0.255
access-list 2 permit any

[Giuseppe Larosa · Accepted solution]

Hello libra_ali786,

the behaviour is correct as the distribute-list is applied outbound in EIGRP meaning it will avoid the EIGRP route for denied  prefix 1.1.1.0/24 to be advertised out in EIGRP.

You then redistribute EIGRP into RIP with no route filters and so the EIGRP route to 1.1.1.0/24 that is installed in the IP routing table is redistributed into RIP and RIP will advertise it.

The key point is that EIGRP route for 1.1.1.0/24 is still in the local IP routing table and for this reason it is redistributed into RIP.

Hope to help

Giuseppe

[libra_ali786]

Thanks . Specially last Key point cleared mu doubt.