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filter-policy import (OSPF view)
Use
filter-policy import
to configure OSPF to filter routes calculated using received LSAs.
Use
undo filter-policy import
to restore the default.
Syntax
filter-policy
{
acl-number
[
gateway
prefix-list-name
] |
gateway
prefix-list-name
|
prefix-list
prefix-list-name
[
gateway
prefix-list-name
] |
route-policy
route-policy-name
}
import
undo filter-policy import
Default
Routes calculated using received LSAs are not filtered.
Views
OSPF view
Predefined user roles
network-admin
Parameters
acl-number
: Specifies an ACL by its number in the range of 2000 to 3999 to filter inbound routes by
destination.
gateway
prefix-list-name
: Specifies an IP prefix list by its name, a case-sensitive string of 1 to 63
characters, to filter inbound routes by next hop.
prefix-list
prefix-list-name
: Specifies an IP prefix list by its name, a case-sensitive string of 1 to 63
characters, to filter inbound routes by destination.
route-policy
route-policy-name
: Specifies a routing policy by its name, a case-sensitive string of 1 to 63
characters, to filter inbound routes.
Usage guidelines
To reference an advanced ACL (with a number from 3000 to 3999) in the command or in the specified
routing policy, configure the ACL in one of the following ways:
•
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 destination address. The specified subnet mask must be contiguous. Otherwise, the
mask configuration does not take effect.
Examples
# Use ACL 2000 to filter inbound routes.
<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] ospf 100
[Sysname-ospf-100] filter-policy 2000 import