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Configuring an IPv6 prefix list
If all items are set to deny mode, no routes can pass the IPv6 prefix list. To allow unmatched IPv6
routes to pass, you must configure the permit :: 0 less-equal 128 item following multiple deny
items.
To configure an IPv6 prefix list:
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Configure an IPv6
prefix list.
• Method 1:
ipv6 prefix-list prefix-list-name [ index
index-number ] { deny | permit } ipv6-address
prefix-length [ greater-equal min-prefix-length ]
[ less-equal max-prefix-length ]
• Method 2:
ipv6 prefix-list prefix-list-name [ index
index-number ] { deny | permit } ipv6-address
inverse prefix-length
By default, no IPv6
prefix list is configured.
When the
inverse
keyword is specified, an
IPv6 prefix is matched
from the least significant
bit to the most significant
bit.
Configuring an AS path list
You can configure multiple items for an AS path list that is identified by a number. The relationship
between the items is logical OR. A route that matches one item matches the AS path list.
To configure an AS path list:
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Configure an AS path
list.
ip as-path
as-path-number {
deny
|
permit
} regular-expression
By default, no AS path list is
configured.
Configuring a community list
You can configure multiple items for a community list that is identified by a number. The relationship
between the items is logical OR. A route that matches one item matches the community list.
To configure a community list:
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Configure a community
list.
• Configure a basic community list:
ip community-list { basic-comm-list-num |
basic basic-comm-list-name } { deny | permit }
[ community-number&<1-32> | aa:nn&<1-32> ]
[ internet | no-advertise | no-export |
no-export-subconfed ] *
• Configure an advanced community list:
ip community-list { adv-comm-list-num |
advanced adv-comm-list-name } { deny |
permit } regular-expression
By default, no
community list is
configured.