
Configuring and Customizing IPv6
118428-A Rev. A 3-11
Supplying an Interface ID
The interface ID -- also called the token -- is a unique number identifying an IPv6
node (a host or a router). This ID is 64 bits long for stateless autoconfiguration.
In IPv6 stateless autoconfiguration, the interface ID is derived by a formula that
uses the link layer 48-bit MAC address. (In most cases, the interface ID is a 64-bit
number that contains the 48-bit MAC address.)
If you elect to configure interface tokens or MAC addresses (or both) manually,
there need not be any relation between the MAC address and the token. A
manually configured token may also be longer or shorter than 64 bits.
You can use the following Site Manager procedure to supply a different interface
ID from one to six characters.
Site Manager Procedure
You do this System responds
1. In the Configuration Manager window,
choose Protocols.
The Protocols menu opens.
2. Choose IPv6. The IPv6 menu opens.
3. Choose Edit IPv6 Interfaces. The IPv6 Interfaces window opens.
4. Click on the interface you want to edit. Site Manager displays the parameter
values for that interface.
5. Set the Interface Token parameter. Click
on Help or see the parameter description
on page A-4.
6. Click on Apply, and then click on Done. Site Manager returns you to the
Configuration Manager window.
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