Advertising a default route, Configuring received/redistributed route filtering – H3C Technologies H3C S5560 Series Switches User Manual

Page 366

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RIPng advertises a summary route with the smallest metric of all the specific routes.
For example, RIPng has two specific routes to be advertised through an interface: 1:11:11::24 with a metric
of a 2 and 1:11:12::34 with a metric of 3. Configure route summarization on the interface, so RIPng

advertises a single route 11::0/16 with a metric of 2.
To configure RIPng route summarization:

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter interface view.

interface interface-type interface-number

N/A

3.

Advertise a summary IPv6
prefix.

ripng summary-address ipv6-address
prefix-length

By default, the
summary IPv6 prefix

is not configured.

Advertising a default route

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter interface view.

interface interface-type
interface-number

N/A

3.

Configure RIPng to advertise a
default route.

ripng default-route { only |
originate } [ cost cost ]

By default, RIPng does not advertise a
default route.
This command advertises a default
route on the current interface

regardless of whether the default route
is available in the local IPv6 routing

table.

Configuring received/redistributed route filtering

Perform this task to filter received or redistributed routes by using an IPv6 ACL or IPv6 prefix list. You can

also configure RIPng to filter routes redistributed from other routing protocols and routes from a specified

neighbor.
To configure a RIPng route filtering policy:

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter RIPng view.

ripng [ process-id ] [ vpn-instance
vpn-instance-name ]

N/A

3.

Configure a filter policy
to filter received routes.

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

By default, RIPng does not filter
received routes.

4.

Configure a filter policy
to filter redistributed

routes.

filter-policy { acl6-number | prefix-list
prefix-list-name } export [ protocol
[ process-id ] ]

By default, RIPng does not filter
redistributed routes.

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