221
Predefined user roles
network-admin
Parameters
acl-number: Specifies an ACL by its number in the range of 2000 to 3999 to filter routes calculated using
received LSPs.
prefix-list prefix-list-name: Specifies an IPv4 prefix list by its name, a case-sensitive string of 1 to 63
characters, to filter routes calculated using received LSPs by destination address.
route-policy route-policy-name: Specifies a routing policy by its name, a case-sensitive string of 1 to 63
characters, to filter received routes.
Usage guidelines
To use an advanced ACL (with a number from 3000 to 3999) in the command, configure the ACL using
one of the following methods:
• To deny/permit a route with the specified destination, use the rule [ rule-id ] { deny | permit } ip
source sour-addr sour-wildcard command.
• To deny/permit a route with the specified destination and mask, use the rule [ rule-id ] { deny |
permit } ip source sour-addr sour-wildcard destination dest-addr dest-wildcard command.
The source keyword specifies the destination address of a route and the destination keyword specifies the
subnet mask of the route. The subnet mask must be contiguous. Otherwise, the configuration does not
take effect.
Examples
# Use ACL 2000 to filter routes calculated using received LSPs.
<Sysname> system-view
[Sysname] acl number 2000
[Sysname-acl-basic-2000] rule deny source 192.168.10.0 0.0.0.255
[Sysname-acl-basic-2000] quit
[Sysname] isis 1
[Sysname-isis-1] filter-policy 2000 import
# Use ACL 3000 to filter routes calculated using received LSPs and install only route 113.0.0.0/16 to the
IP routing table.
<Sysname> system-view
[Sysname] acl number 3000
[Sysname-acl-adv-3000] rule 10 permit ip source 113.0.0.0 0 destination 255.255.0.0 0
[Sysname-acl-adv-3000] rule 100 deny ip
[Sysname-acl-adv-3000] quit
[Sysname] isis 1
[Sysname-isis 1] filter-policy 3000 import
Related commands
display ip routing-table
flash-flood
Use flash-flood to enable IS-IS LSP flash flooding.
Use undo flash-flood to disable IS-IS LSP flash flooding.
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