IPv6 static routing configuration· 1

Introduction to IPv6 static routing· 1

Features of IPv6 static routes 1

Default IPv6 route· 1

Configuring an IPv6 static route· 1

Configuration prerequisites 1

Configuration procedure· 2

Displaying and maintaining IPv6 static routes 2

IPv6 static routing configuration example· 2

 

This chapter includes these sections:

·          Introduction to IPv6 static routing

·          Configuring an IPv6 static route

·          Displaying and maintaining IPv6 static routes

·          IPv6 static routing configuration example

 

NOTE: ·      The term "switch" or "device" in this chapter refers to the switching engine on a WX3000E wireless switch. ·      The WX3000E series comprises WX3024E and WX3010E wireless switches. ·      The port numbers in this chapter are for illustration only.

Introduction to IPv6 static routing

Static routes are manually configured. They work well in simple networks. Configuring and using them properly can improve network performance and ensure enough bandwidth for important applications.

However, static routes also have limitations. Any topology changes require the network administrator to manually configure and modify the relevant static routes.

Features of IPv6 static routes

Similar to IPv4 static routes, IPv6 static routes work well in simple IPv6 network environments.

Their major difference lies in the destination and next hop addresses. IPv6 static routes use IPv6 addresses, whereas IPv4 static routes use IPv4 addresses.

Default IPv6 route

An IPv6 static route with a destination prefix of ::/0  is a default IPv6 route. The default route is used to forward packets that match no specific routes in the routing table.

Configuring an IPv6 static route

In small IPv6 networks, IPv6 static routes can be used to forward packets. In comparison to dynamic routes, it helps to save network bandwidth.

Configuration prerequisites

·          Configure parameters for the related interfaces

·          Configure link layer attributes for the related interfaces

·          Enable IPv6 packet forwarding

·          Ensure that the neighboring nodes can reach each other

Configuration procedure

Follow these steps to configure an IPv6 static route:

To do…	Use the commands…	Remarks
Enter system view	system-view	—
Configure an IPv6 static route	ipv6 route-static ipv6-address prefix-length [ interface-type interface-number ] next-hop-address [ preference preference-value ]	Required Use either approach. The default preference of IPv6 static routes is 60.

 

NOTE: If the output interface of a static route is a broadcast interface, such as a VLAN interface, the next hop address must be specified, and must be a link-local address.

 

Displaying and maintaining IPv6 static routes

To do…	Use the command…	Remarks
Display IPv6 static route information	display ipv6 routing-table protocol static [ inactive | verbose ] [ | { begin | exclude | include } regular-expression ]	Available in any view
Remove all IPv6 static routes	delete ipv6 static-routes all	Available in system view

 

NOTE: ·      Using the undo ipv6 route-static command can delete a single IPv6 static route. Using the delete ipv6 static-routes all command deletes all IPv6 static routes including the default route. ·      For more information about the display ipv6 routing-table protocol static [ inactive | verbose ] [ | { begin | exclude | include } regular-expression ] command, see the Layer 3 Command Reference.

 

IPv6 static routing configuration example

Network requirements

As shown in Figure 1, configure IPv6 static routes so that hosts can reach one another.

Figure 1 Network diagram for IPv6 static route configuration

 

Configuration procedure

1.        Configure the IPv6 addresses for all VLAN interfaces (omitted)

2.        Configure IPv6 static routes.

# Configure a default IPv6 static route on SwitchA.

<SwitchA> system-view

[SwitchA] ipv6

[SwitchA] ipv6 route-static :: 0 4::2

# Configure two IPv6 static routes on SwitchB.

<SwitchB> system-view

[SwitchB] ipv6

[SwitchB] ipv6 route-static 1:: 64 4::1

[SwitchB] ipv6 route-static 3:: 64 5::1

# Configure a default IPv6 static route on SwitchC.

<SwitchC> system-view

[SwitchC] ipv6

[SwitchC] ipv6 route-static :: 0 5::2

3.        Configure the IPv6 addresses and gateways for hosts.

Configure the IPv6 addresses for all the hosts based on the network diagram, configure the default gateway of Host A as 1::1, that of Host B as 2::1, and that of Host C as 3::1.

4.        Display configuration information

# Display the IPv6 routing table of SwitchA.

[SwitchA] display ipv6 routing-table

Routing Table :

         Destinations : 5        Routes : 5

 

 Destination  : ::                                   Protocol     : Static

 NextHop      : 4::2                                 Preference   : 60

 Interface    : Vlan-interface200                    Cost         : 0

 

 Destination  : ::1/128                              Protocol     : Direct

 NextHop      : ::1                                  Preference   : 0

 Interface    : InLoop0                              Cost         : 0

 

 Destination  : 1::/64                               Protocol     : Direct

 NextHop      : 1::1                                 Preference   : 0

 Interface    : Vlan-interface100                    Cost         : 0

 

 Destination  : 1::1/128                             Protocol     : Direct

 NextHop      : ::1                                  Preference   : 0

 Interface    : InLoop0                              Cost         : 0

 

 Destination  : FE80::/10                            Protocol     : Direct

 NextHop      : ::                                   Preference   : 0

 Interface    : NULL0                                Cost         : 0

# Verify the connectivity with the ping command.

[SwitchA] ping ipv6 3::1

  PING 3::1 : 56  data bytes, press CTRL_C to break

    Reply from 3::1

    bytes=56 Sequence=1 hop limit=254  time = 63 ms

    Reply from 3::1

    bytes=56 Sequence=2 hop limit=254  time = 62 ms

    Reply from 3::1

    bytes=56 Sequence=3 hop limit=254  time = 62 ms

    Reply from 3::1

    bytes=56 Sequence=4 hop limit=254  time = 63 ms

    Reply from 3::1

    bytes=56 Sequence=5 hop limit=254  time = 63 ms

 

  --- 3::1 ping statistics ---

    5 packet(s) transmitted

    5 packet(s) received

    0.00% packet loss

    round-trip min/avg/max = 62/62/63 ms