ip community-list community-list-name
2 Configure a community list by denying or permitting specific community numbers or types of
community.
CONFIG-COMMUNITYLIST mode
{deny | permit} {community-number | local-AS | no-advertise | no-export |
quote-regexp regular-expression-list | regexp regular-expression}
• community-number: use AA:NN format where AA is the AS number (2 Bytes or 4 Bytes) and NN is
a value specific to that autonomous system.
• local-AS: routes with the COMMUNITY attribute of NO_EXPORT_SUBCONFED.
• no-advertise: routes with the COMMUNITY attribute of NO_ADVERTISE.
• no-export: routes with the COMMUNITY attribute of NO_EXPORT.
• quote-regexp: then any number of regular expressions. The software applies all regular
expressions in the list.
• regexp: then a regular expression.
Example of the show ip community-lists Command
To view the configuration, use the show config command in CONFIGURATION COMMUNITY-LIST or
CONFIGURATION EXTCOMMUNITY LIST mode or the
show ip {community-lists | extcommunity-
list} command in EXEC Privilege mode.
Dell#show ip community-lists
ip community-list standard 1
deny 701:20
deny 702:20
deny 703:20
deny 704:20
deny 705:20
deny 14551:20
deny 701:112
deny 702:112
deny 703:112
deny 704:112
deny 705:112
deny 14551:112
deny 701:667
deny 702:667
deny 703:667
deny 704:666
deny 705:666
deny 14551:666
Dell#
Configuring an IP Extended Community List
To configure an IP extended community list, use these commands.
1 Create a extended community list and enter the EXTCOMMUNITY-LIST mode.
CONFIGURATION mode
ip extcommunity-list extcommunity-list-name
2 Two types of extended communities are supported.
Border Gateway Protocol IPv4 (BGPv4) 246
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