Protocol Independent Features
Left running head:
Chapter name (automatic)
448
Beta
Beta
CLI Configuration Guide
Alcatel-Lucent
C
ONFIGURE
P
REFIX
-
LIST
IP Prefix-list provides prefix based filtering mechanism. In addition to the access-
list functionality, IP Prefix-list has prefix length range specification and sequential
number specification. You can add or delete prefix based filters to arbitrary points
of prefix-list using sequential number specification.
E
XAMPLE
In the following example, permit updates for any network with a prefix mask length
less than or equal to 23. Denies all network updates with a network mask length
greater than 23.
ALU(config)# ip prefix-list test permit 0.0.0.0/0 le 23
Note:
Less than or equal to prefix numbers and greater than or equal to prefix numbers can
be used together. The order of the le and ge commands does not matter.
C
ONFIGURE
AS-
PATH
A
CCESS
-
LIST
A regular expression is a pattern used to match against an input string. In case of
BGP, we can have a regular expression to match particular autonomous system
path. This is used to filter updates from neighbors.
E
XAMPLE
In the following example, the IP as-path access-list commands create an as-path
access list named '1' to deny only those routes that include paths from or through
autonomous systems 100:
ALU(config)# ip as-path access-list 1 deny _100_
Command (in CM)
Description
ip prefix-list
<
name
> [
seq
<
1-
4294967294
>] {{
deny
|
permit
}
<
ip-address/prefix-length>
{
ge
|
le
} <
0-32
>|
description
<
line
>}
This command is used to configure a
Prefix-list.
Command (in CM)
Description
ip as-path access-list
<
1-199
>
{
deny
|
permit
} <
regular-
expression
>
This command is used to configure AS-
path Access-list.
Summary of Contents for OmniAccess 700
Page 38: ...Left running head Chapter name automatic 12 Beta Beta CLI Configuration Guide Alcatel Lucent ...
Page 176: ...Left running head Chapter name automatic 150 Beta Beta CLI Configuration Guide Alcatel Lucent ...
Page 260: ...Left running head Chapter name automatic 234 Beta Beta CLI Configuration Guide Alcatel Lucent ...
Page 434: ...Left running head Chapter name automatic 408 Beta Beta CLI Configuration Guide Alcatel Lucent ...
Page 464: ...Left running head Chapter name automatic 438 Beta Beta CLI Configuration Guide Alcatel Lucent ...
Page 638: ...Left running head Chapter name automatic 612 Beta Beta CLI Configuration Guide Alcatel Lucent ...
Page 940: ...Left running head Chapter name automatic 914 Beta Beta CLI Configuration Guide Alcatel Lucent ...
Page 1002: ...Left running head Chapter name automatic 976 Beta Beta CLI Configuration Guide Alcatel Lucent ...
Page 1120: ...Left running head Chapter name automatic 2 Beta Beta CLI Configuration Guide Alcatel Lucent ...