Filter Lists - Avaya 1000 Series Configuration Manual

The above output shows that Distribute_list 20 is applied to group ToAvaya2.
Avaya2> show ip bgp table
BGP route table, local router ID is 100.1.1.3 Status codes: * valid, > best, i -
internal Origin codes: i - IGP, e - EGP, ? - incomplete
Network
15.1.1.0/24
15.1.2.0/24
18.1.0.0/21
Avaya2 bgp table output shows that all 18.1.0.0/24 range is filtered by Avaya1 while sending
the bgp updates. Since 18.1.0.0 has a mask of /21 it was not filtered by Avaya1. Remove the
distribute list from Avaya1.
Avaya1/configure> router bgp 100
Avaya1/configure/router/bgp 100> group ToAvaya2
external
Avaya1/configure/router/bgp 100/group ToAvaya2
external> no distribute_list 20 out
Avaya2> show ip bgp table
BGP route table, local router ID is 100.1.1.3 Status codes: * valid, > best, i -
internal Origin codes: i - IGP, e - EGP, ? - incomplete
Network
18.1.1.0/24
18.1.2.0/24
18.1.3.0/24
18.1.0.0/21
18.1.5.0/24
18.1.6.0/24
18.1.7.0/24

Filter Lists

Filter-Lists can be applied to neighbors/neighbor groups to permit/deny routes based on
AS_PATH information. By using filter-list you do not have to apply it to a route map and then
apply to a neighbor/group. A filter-list can be directly applied either to a neighbor INBOUND
or a group OUTBOUND. Avaya2 has the following routes received from Avaya1.
Avaya2> show ip bgp table
Avaya Secure Router 1000 Series Configuration Guide
Orig Next Hop Next Hop
20.1.1.1 20.1.1.1
20.1.1.1 20.1.1.1
20.1.1.1 20.1.1.1
Orig Next Hop Next Hop
20.1.1.1 20.1.1.1
20.1.1.1 20.1.1.1
20.1.1.1 20.1.1.1
20.1.1.1 20.1.1.1
20.1.1.1 20.1.1.1
20.1.1.1 20.1.1.1
20.1.1.1 20.1.1.1
Metric LocPrf Path
100 200 ?
100 200 ?
100 i
Metric LocPrf Path
100 200 ?
100 200 ?
100 200 ?
100 i
100 200 ?
100 200 ?
100 200 ?
Configuring BGP Policies
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