# Configuring a link-local address for a VLAN

Use this procedure to configure an IPv6 link-local address for a VLAN.

## Procedure steps

1. From the navigation tree, double-click IPv6.

2. Double-click IPv6.

   Important

   Enterprise Device Manager provides multiple paths to configure IPv6 interfaces and addresses. In addition to selecting Configuration > IPv6 > IPv6 you can select Configuration > VLAN > VLANs (select a VLAN) IPv6.

3. Click the Interfaces tab.

4. Click Insert.

5. In the IfIndex box, click VLAN, and select a VLAN.

6. You must select the AdminStatus check box before the interface takes effect.

7. Edit the remaining fields.

8. Click Insert.

9. Click Apply.

## Variable definitions

The following table describes the fields of the Interfaces tab.

Variable | Value
--- | ---
IfIndex | Specifies a unique value to identify a logical interface (VLAN). For a VLAN it is the ifindex of the VLAN.
Identifier | Specifies the IPv6 address interface identifier. This is a binary string of up to 8 octets in network byte order.
IdentifierLength | Specifies the length of the interface identifier in bits.
Descr | Specifies a text string containing information about the interface. The network management system also configures this string.
VlanId | Specifies a value that uniquely identifies the Virtual LAN associated with the entry. This value corresponds to the lower 12 bits in the IEEE 802.1Q VLAN tag.
Type | Specifies the type of interface.
ReasmMaxSize(MTU) | Specifies the MTU for this IPv6 interface. This value must be same for all the IP addresses defined on this interface. The default value is 1500.
PhysAddress | Specifies the media-dependent physical address. For Ethernet, this is a MAC address.
AdminStatus | Indicates whether IPv6 is enabled (true) or disabled (false) on this interface. This object does not affect the state of the interface itself, only the connection to an IPv6 stack. The default is false.
OperStatus | Specifies the current operational status of the interface.
ReachableTime | Specifies the time (in milliseconds) a neighbor is considered reachable after receiving a reachability confirmation message. The default is 30000.
RetransmitTime | Specifies the time (in milliseconds) between retransmissions of neighbor solicitation messages to a neighbor when resolving the address or when probing the reachability of a neighbor. The default is 1000.
MulticastAdminStatus | Indicates whether multicasting for IPv6 is enabled (up) or disabled (down) on this interface. The default is false.