Инструкции По Установке для 3com S7906E

 

1-4 

 

If all the items are set to the deny mode, no routes can pass the IPv4 prefix list. Therefore, you need to 

define the permit 0.0.0.0 0 less-equal 32 item following multiple deny items to allow other IPv4 routing 

information to pass.  

 

For example, the following configuration filters routes 10.1.0.0/16, 10.2.0.0/16 and 10.3.0.0/16, but 

allows other routes to pass. 

<Sysname> system-view 

[Sysname] ip ip-prefix abc index 10 deny 10.1.0.0 16 

[Sysname] ip ip-prefix abc index 20 deny 10.2.0.0 16 

[Sysname] ip ip-prefix abc index 30 deny 10.3.0.0 16 

[Sysname] ip ip-prefix abc index 40 permit 0.0.0.0 0 less-equal 32 

Identified by name, each IPv6 prefix list can comprise multiple items. Each item specifies a prefix range 

to match and is identified by an index number.  

An item with a smaller index number is matched first. If one item is matched, the IPv6 prefix list is 

passed, and the routing information will not go to the next item. 

Follow these steps to define an IPv6 prefix list: 

Enter system view 

— 

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, no routes can pass the IPv6 prefix list. Therefore, you need to 

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 ipv6-prefix abc index 10 deny 2000:1:: 48 

[Sysname] ip ipv6-prefix abc index 20 deny 2000:2:: 48 

[Sysname] ip ipv6-prefix abc index 30 deny 2000:3:: 16