H3C S6116 Ultra-Low Latency Switch Series Configuration Guide-Release 671x-6W100

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15-IPv6 static routing configuration
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15-IPv6 static routing configuration 74.76 KB

Configuring IPv6 static routing

About IPv6 static routing

Static routes are manually configured and cannot adapt to network topology changes. If a fault or a topological change occurs in the network, the network administrator must modify the static routes manually. IPv6 static routing works well in a simple IPv6 network.

Restrictions and guidelines: IPv6 static routing configuration

You can specify only a management Ethernet interface for an IPv6 static route as the output interface, and you cannot specify a service interface as the output interface.

Configuring an IPv6 static route

1.     Enter system view.

system-view

2.     Configure an IPv6 static route.

ipv6 route-static ipv6-address prefix-length interface-type interface-number [ next-hop-address ] [ description text ]

ipv6 route-static ipv6-address prefix-length next-hop-address [ description text ]

By default, no IPv6 static route is configured.

3.     (Optional.) Set the default preference for IPv6 static routes.

ipv6 route-static default-preference default-preference

The default setting is 60.

Deleting IPv6 static routes

About this task

To delete an IPv6 static route, use the undo ipv6 route-static command. To delete all IPv6 static routes including the default route, use the delete ipv6 static-routes all command.

Procedure

1.     Enter system view.

system-view

2.     Delete all IPv6 static routes, including the default route.

delete ipv6 static-routes all

 

CAUTION

CAUTION:

Deleting all IPv6 static routes with caution. This operation might cause network connectivity failure and packet forwarding failure.

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Display and maintenance commands for IPv6 static routing

Execute display commands in any view.

 

Task

Command

Display IPv6 static route next hop information.

display ipv6 route-static nib [ nib-id ] [ verbose ]

Display IPv6 static routing table information.

display ipv6 route-static routing-table [ ipv6-address prefix-length ]

 


Configuring an IPv6 default route

A default IPv6 route is used to forward packets that match no entry in the routing table.

A default IPv6 route can be configured in either of the following ways:

·     The network administrator can configure a default route with a destination prefix of ::/0. For more information, see "Configuring IPv6 static routing."

·     Some dynamic routing protocols can generate a default IPv6 route. For example, an upstream router can generate a default IPv6 route and advertise it to other routers. These routers install the default IPv6 route with the next hop being the upstream router.

As shown in Figure 1, Device B is the next hop for packets from Device A to Device C, Device D, and Device E. You can configure a default route on Device A to replace the three IPv6 static routes from Device A to Device C, Device D, and Device E, respectively.

The next hop address, destination address, and subnet mask of the IPv6 default route configured on Device A are 1::2, ::, and 0, respectively.

Figure 1 Configuring a default route

 

 

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