Инструкции По Установке для 3com S7906E

 

1-9 

IPv6 BGP advertises routes passing the specified policy to peers. Using the protocol argument can filter 

only the routes redistributed from the specified protocol. If no protocol is specified, IPv6 BGP filters all 

routes to be advertised, including redistributed routes and routes imported with the network command.  

 

Follow these steps to configure inbound route filtering: 

Enter system view 

— 

Enter BGP view 

bgp as-number 

— 

Enter IPv6 address family view 

ipv6-family 

— 

Configure inbound route 
filtering 

filter-policy { acl6-number | 
ipv6-prefix ipv6-prefix-name } 
import 

Required 

Not configured by default. 

Apply a routing policy to routes 
from an IPv6 peer/peer group 

peer { ipv6-group-name | 
ipv6-address } route-policy 
route-policy-name import 

Required 

Not applied by default. 

Specify an ACL to filter routes 
imported from an IPv6 
peer/peer group 

peer { ipv6-group-name | 
ipv6-address } filter-policy 
acl6-number import 

Required 

Not specified by default. 

Specify an AS path ACL to filter 
routing information imported 
from an IPv6 peer/peer group 

peer { ipv6-group-name | 
ipv6-address } as-path-acl 
as-path-acl-number import 

Required 

Not specified by default. 

Specify an IPv6 prefix list to 
filter routing information 
imported from an IPv6 
peer/peer group 

peer { ipv6-group-name | 
ipv6-address } ipv6-prefix 
ipv6-prefix-name import 

Required 

Not specified by default. 

Specify the upper limit of 
prefixes allowed to receive from 
an IPv6 peer/peer group 

peer { ipv6-group-name | 
ipv6-address } route-limit limit 
[ percentage ] 

Optional 

Unlimited by default. 

 

z 

Only routes passing the configured filtering can be added into the local IPv6 BGP routing table. 

z 

Members of a peer group can have different inbound route filtering policies. 

 

With this feature enabled and when a non-BGP router is responsible for forwarding packets in an AS, 

IPv6 BGP speakers in the AS cannot advertise routing information to outside ASs unless all routers in 

the AS know the latest routing information.