ECS4660-28F_Management Guide-R03

C HAPTER 49 | IP Interface Commands
IPv6 to IPv4 Tunnels
– 1701 –
tunnel end-point IPv4 address. This eliminates the need to explicitly
configure the tunnel end-point address.
◆ The two tunneling techniques – configured and automatic – differ
primarily in how they determine the tunnel end-point address. Most of
the underlying mechanisms are the same:
■
The entry node of the tunnel (the encapsulating node) creates an
encapsulating IPv4 header and transmits the encapsulated packet.
■
The exit node of the tunnel (the decapsulating node) receives the
encapsulated packet, reassembles the packet if needed, removes
the IPv4 header, updates the IPv6 header, and processes the
received IPv6 packet.
EXAMPLE
Console(config)#interface tunnel 2
Console(config-if)#tunnel mode ipv6ip configured
Console(config-if)#
tunnel source vlan This command sets the VLAN to which a tunnel source (or local end-point
of a tunnel) is assigned. Use the no form to detach the tunnel from the
assigned VLAN.
SYNTAX
tunnel source vlan vlan-id
no tunnel source vlan
vlan-id - VLAN ID (Range: 1-4094)
DEFAULT SETTING
None
COMMAND MODE
Interface Configuration (IPv6/v4 Tunnel)
COMMAND USAGE
The VLAN assigned to a tunnel must be a L3 VLAN with an IPv4 address.
Otherwise, an error message will be displayed on the console.
EXAMPLE
Console(config)#interface tunnel 2
Console(config-if)#tunnel source vlan 2
Console(config-if)#