3com 8807 Reference Guide
562
C
HAPTER
28: IP R
OUTING
P
OLICY
C
ONFIGURATION
C
OMMANDS
no-export: Does not advertise routes beyond the AS or the confederation, but
can advertise routes to other sub-ASs within the confederation.
can advertise routes to other sub-ASs within the confederation.
comm-regular-expression: Community attribute in regular expression format.
Description
Use the ip community-list command to configure a BGP community list.
Use the undo ip community-list command to cancel the configured BGP
community list.
community list.
The configured community list can be used in BGP policy.
Related command: apply community, display bgp routing-table
community-list.
community-list.
Example
# Define a community attribute list, not allowing to advertise routes with the
community attribute beyond the local AS.
community attribute beyond the local AS.
[SW8800] ip community-list 6 permit no-export-subconfed
ip ip-prefix
Syntax
ip ip-prefix ip-prefix-name [ index index-number ] { permit | deny } network len
[ greater-equal greater-equal | less-equal less-equal ]
[ greater-equal greater-equal | less-equal less-equal ]
undo ip ip-prefix ip-prefix-name [ index index-number | permit | deny ]
View
System view
Parameter
ip-prefix-name: The specified address prefix list name. It identifies one address
prefix list uniquely.
prefix list uniquely.
index-number: Identifies an item in the prefix address list. The item with a smaller
index-number will be tested first.
index-number will be tested first.
permit: Specifies the match mode of the defined address prefix list items as
permit mode. In this case, if the IP address of the route to be filtered matches an
entry in the address prefix list, the route passes the filtering and no further check is
performed. If not, it is check against the next entry.
permit mode. In this case, if the IP address of the route to be filtered matches an
entry in the address prefix list, the route passes the filtering and no further check is
performed. If not, it is check against the next entry.
deny: Specifies the match mode of the defined address prefix list items as deny
mode. In this case, if the IP address of the route to be filtered matches an entry in
the address prefix list, the route is denied without further check. If otherwise, the
IP address is checked against the next address prefix entry.
mode. In this case, if the IP address of the route to be filtered matches an entry in
the address prefix list, the route is denied without further check. If otherwise, the
IP address is checked against the next address prefix entry.
network: The IP address prefix range (IP address). If it is 0.0.0.0 0, all the IP
addresses are matched.
addresses are matched.
len: The IP address prefix range (mask length). If it is 0.0.0.0 0, all the IP addresses
are matched.
are matched.