IP Configuration
IPv6 Management and Interfaces
Cisco 350, 350X and 550X Series Managed Switches, Firmware Release 2.4, ver 0.4 315
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Enterprise Number—If you select this option, enter the following fields.
- Enterprise Number—The vendors registered Private Enterprise number as 
maintained by IANA.
- Identifier—The vendor-defined hex string (up to 64 hex characters). If the number 
of the character is not even, a zero is added at the right. Each 2 hex characters can 
be separated by a period or colon.
• DHCPv6 Unique Identifier (DUID)—Displays the identifier selected.
STEP  3 Click Apply. The IPv6 global parameters and DHCPv6 client settings are updated.
IPv6 Interfaces
An IPv6 interface can be configured on a port, LAG, VLAN, loopback interface or tunnel. 
As opposed to other types of interfaces, a tunnel interface is first created in the IPv6 Tunnel 
page and then IPv6 interface is configured on the tunnel in this page. 
To define an IPv6 interface: 
STEP 1 Click IP Configuration > IPv6 Management and Interfaces > IPv6 Interfaces.
STEP  2 Enter the parameters.
• IPv6 Link Local Default Zone—Select to enable defining a default zone. This is an 
interface to be used to egress a link-local packet arriving without a specified interface 
or with its default zone 0. 
• IPv6 Link Local Default Zone Interface—Select an interface to be used as a default 
zone. This can be a previously-defined tunnel or other interface.
STEP  3 Click Apply to configure default zone.
The IPv6 Interface Table is displayed along with the following field: 
• Tunnel Type—Manual, 6 to 4 and ISATAP.
STEP  4 Click Add to add a new interface on which interface IPv6 is enabled.
STEP  5 Enter the fields:
• IPv6 Interface—Select a specific unit, port, LAG, loopback interface or VLAN for the 
IPv6 address.