3com MSR 20-20 참조 매뉴얼

ipv6-prefix ipv6-prefix-name: Specifies the name of an IPv6 Prefix list to filter 
incoming routes, in the range 1 to 19 characters.

Use the filter-policy import command to filter incoming routing information. 
Only routes which match the filtering policy can be received.

Use the undo filter-policy import command to disable incoming route 
filtering.

By default, RIPng does not filter incoming routing information.

# Reference IPv6 prefix list Filter1 to filter received RIPng updates.

<Sysname> system-view

[Sysname] ripng 100

[Sysname-ripng-100] filter-policy ipv6-prefix Filter1 import 

import-route protocol [ process-id ] [ allow-ibgp ] [ cost cost | route-policy 
route-policy-name ] *

undo import-route protocol [ process-id ]

RIPng view

protocol: Specifies a routing protocol from which to redistribute routes. Currently, 
it can be bgp4+, direct, isisv6, ospfv3, ripng, or static.

process-id: Process ID, in the range of 1 to 65535. The default is 1. This argument 
is available only when the protocol is isisv6, ospfv3, or ripng.

cost: Routing metric of redistributed routes, in the range of 0 to 16. If cost value is 
not specified, the metric is the default metric specified by the default cost 
command.

route-policy route-policy-name: Specifies a routing policy by its name with 1 to 
19 characters.

allow-ibgp: Optional keyword when the specified protocol is bgp4+. The 
import-route bgp4+ command redistributes only EBGP routes. The 
import-route bgp4+ allow-ibgp command redistributes additionally IBGP 
routes, thus be cautious when using it.

Use the import-route command to redistribute routes from another routing 
protocol.

Use the undo import-route command to disable redistributing routes from 
another routing protocol.

By default, RIPng does not redistribute routes from other routing protocols.