Avaya 1000 Series Configuration Manual page 327

18.1.5.0/24
18.1.6.0/24
18.1.7.0/24
Distribute_list uses ip_access_list filter rules to define the filter set. Configure an
IP_ACCESS_LIST for distribute_list to use.
Avaya1/configure> policy ip_access_list 10 1 deny
network 15.1.0.0 netmask 0.0.255.255 mask 255.255.255.0
maskmask 0.0.0.0
Avaya1/configure> policy ip_access_list 10 2 permit
The above commands configure the filter_list which denies routes in the range of 15.1.0.0 to
15.1.255.255 having netmask 255.255.255.0. IP_ACCESS_LIST 10 with sequence number 2
is configured to allow routes other than 15.1.x.x range or else every route will get denied
because of the IMPLICIT deny all. Put a distribute_list INBOUND to block routes in the range of
15.1.x.x coming from 3rdPartyRouter.
Avaya1/configure/router/bgp 100>
Avaya1/configure/router/bgp 100> neighbor 30.30.30.3 200
Avaya1/configure/router/bgp 100/neighbor 30.30.30.3
200> distribute_list 10 in
The above command applies the distribute_list 10 INBOUND to neighbor 30.30.30.3 which is
3rdPartyRouter.
Avaya1/configure> show ip bgp table
BGP route table, local router ID is 30.30.30.1 Status codes: * valid, > best, i -
internal Origin codes: i - IGP, e - EGP, ? - incomplete
Network
15.1.2.0/24
15.1.3.0/24
18.1.1.0/24
18.1.5.0/24
18.1.6.0/24
18.1.7.0/24
Avaya1 has filtered routes in the range of 15.1.x.x learnt from 3rdPartyRouter. All other routes
are made ACTIVE in the bgp table. Remove the distribute list from neighbor 30.30.30.3.
Avaya1/configure/router/bgp 100/neighbor 30.30.30.3
200> no distribute_list 10 in
Avaya1/configure/router/bgp 100/neighbor 30.30.30.3.
200> Avaya1> show ip bgp table
BGP route table, local router ID is 30.30.30.1 Status codes: * valid, > best, i -
internal Origin codes: i - IGP, e - EGP, ? - incomplete
Avaya Secure Router 1000 Series Configuration Guide
30.30.30.3 100
30.30.30.3 100
30.30.30.3 100
Next Hop Metric
30.30.30.3 100
30.30.30.3 100
30.30.30.3 100
30.30.30.3 100
30.30.30.3 100
30.30.30.3 100
Configuring BGP Policies
170 200 ?
170 200 ?
170 200 ?
LocPrf Path
0 200 ?
0 200 ?
170 200 ?
170 200 ?
170 200 ?
170 200 ?
December 2010 327