User's Manual

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Chapter 76 IPv6 Protocol’s Configuration
76.1 IPv6 Protocol’s Configuration
The configuration of the IPv6 address of the router only takes effect on the VLAN interface, not on the physical
interface.
The IPv6 protocol is disabled in default state. If the IPv6 protocol need be used on a VLAN interface, this
protocol should be first enabled in VLAN interface configuration mode. To enable the IPv6 protocol, users have
to set the IPv6 address. If on a VLAN interface at least one IPv6 address is set, the VLAN interface can handle
the IPv6 packets and communicates with other IPv6 devices.
To enable the IPv6 protocol, users should finish the following task:
 Setting at least one IPv6 address in VLAN interface configuration mode
76.2 Enabling IPv6
76.2.1 Setting the IPv6 Address
The IPv6 address is used to determine the destination address to which the IPv6 packets can be sent. There
are three kinds of IPv6 addresses.
Kind Referred Format Remarks
Unicast
address
2001:0:0:0:0DB8:800:200C:417A/6
4
2001:0:0:0:0DB8:800:200C:417A
stands for a unicast address, while 64
stands for the length of the prefix of this
address.
Multicast
address
FF01:0:0:0:0:0:0:101 All multicast addresses begin with FF.
Any address 2002:0:0:0:0DB8:800:200C:417A/6
4
The format of this address is the same
as that of the unicast address. Different
VLAN interfaces can be set to have the
same address, no matter it is a
unicast/broadcast/multicast address.
For the further details of the IPv6 address, see RFC 4291.
In order to enable IPv6, users must set a unicast address in VLAN interface configuration mode. The set
unicast address must be one or multiple addresses of the following type:
 IPv6 link-local address
 Global IPv6 address
To set an IPv6 link-local address in VLAN interface configuration mode, run the following commands.
Command Purpose
ipv6 enable Sets a link-local address