Configuring IPv6 Configuring an IPv6 Interface
OmniSwitch AOS Release 8 Network Configuration Guide December 2017 page 17-13
Configuring an IPv6 Interface
The ipv6 interface command is used to create an IPv6 interface for a VLAN or a tunnel. Note the
following when configuring an IPv6 interface:
• A unique interface name is required for both a VLAN and tunnel interface.
• If creating a VLAN interface, the VLAN must already exist. See Chapter 4, “Configuring VLANs,” for
more information.
• If creating a tunnel interface, a tunnel ID or 6to4 is specified. Only one 6to4 tunnel is allowed per
switch, so it is not necessary to specify an ID when creating this type of tunnel.
• If a tunnel ID is specified, then a configured tunnel interface is created. This type of tunnel requires
additional configuration by using the ipv6 address global-id command. See “Configuring IPv6 Tunnel
Interfaces” on page 17-17 for more information.
• Each VLAN can have one IPv6 interface. Configuring both an IPv4 and IPv6 interface on the same
VLAN is allowed. Note that the VLAN interfaces of both types are not active until at least one port
associated with the VLAN goes active.
• A link-local address is automatically configured for an IPv6 interface, except for 6to4 tunnels, when
the interface is configured. For more information regarding how this address is formed, see
“Autoconfiguration of IPv6 Addresses” on page 17-7.
• Assigning more than one IPv6 address to a single IPv6 interface is allowed.
• Assigning the same link-local address to multiple interfaces is allowed. Each global unicast prefix,
subset of, or superset of a prefix can only exist on one interface. For example, if an interface for VLAN
100 is configured with an address 2001:db8:4100:1000::1/64, an interface for VLAN 200 cannot have
an address 2001:db8:4100:1000::2/64.
• A subnet router anycast address is automatically created when a global unicast address is assigned to
an interface.
To create an IPv6 interface for a VLAN or configured tunnel, enter ipv6 interface followed by an
interface name, then vlan (or tunnel) followed by a VLAN ID (or tunnel ID). For example, the following
two commands create an IPv6 interface for VLAN 200 and an interface for tunnel 35:
-> ipv6 interface v6if-v200 vlan 200
-> ipv6 interface v6if-tunnel-35 tunnel 35
To create an IPv6 interface for a 6to4 tunnel, use the following command:
-> ipv6 interface v6if-6to4 tunnel 6to4
Use the show ipv6 interface command to verify the interface configuration for the switch. For more
information about this command, see the OmniSwitch AOS Release 8 CLI Reference Guide.
Note. A 6to4 tunnel is automatically created at startup.
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