418
To do…
Use the command…
Remarks
Step 2
Define an IPv6
prefix list
ip ipv6-prefix
ipv6-prefix-name
[
index
index-number
] {
deny
|
permit
}
ipv6-
address prefix-length
[
greater-equal
min-
prefix-length
] [
less-equal
max-prefix-length
]
Required
Not defined by default
If all items are set to the
deny
mode, then no routes can pass the IPv6 prefix list. Define the
permit
:: 0
less-equal
128 item following multiple
deny
items to allow other IPv6 routing information to pass.
For example, the following configuration filters routes 2000:1::/48, 2000:2::/48, and
2000:3::/48, but allows other routes to pass.
<Sysname> system-view
[Sysname] ip ip-prefix abc index 10 deny 2000:1:: 48
[Sysname] ip ip-prefix abc index 20 deny 2000:2:: 48
[Sysname] ip ip-prefix abc index 30 deny 2000:3:: 48
[Sysname] ip ip-prefix abc index 40 permit :: 0 less-equal 128
Defining an AS-PATH list
You can define multiple items for an AS-PATH list that is identified by number. The relationship
between items is logical OR, that is, if a route matches one of these items, then it passes the AS-
PATH list.
To do…
Use the command…
Remarks
Step 1
Enter system
view
system-view
—
Step 2
Define an AS
path ACL
ip as-path
as-path-number
{
deny
|
permit
}
regular-expression
Required
Not defined by default
Defining a community list
You can define multiple items for a community list that is identified by number. During matching,
the relationship between items is logical OR, that is, if routing information matches one of these
items, then it passes the community list.
To do…
Use the command…
Remarks
Step 1
Enter system view
system-view
—
