June 30, 2006
Confidential
Document Number BDTM10001-A05 Standard
BelAir100 User Guide
Using Layer 2 Tunnels
create multiple tunnels to the same peer or to different peers. Each tunnel
carries just one L2TP session.
The <index> parameter is used for easy reference when using other
commands. It can be displayed with the
show tunnels
command.
The <stn_name> parameter can be any series of 18 alphanumeric ASCII
characters. L2TP protocol provides the <stn_name> parameter to the other
end point so it can identify different tunnels coming from the same IP address.
The
tunnel del
command removes the specified tunnel. After using this
command, user data mapped to this tunnel is dropped instead of forwarded.
Mapping User Traffic
tunnel map-vlan [untagged|<VLAN ID>] to <index>
tunnel unmap-vlan [untagged|<VLAN ID>]
The
tunnel map-vlan
command instructs the node to forward traffic to the
specified tunnel. You can specify either traffic associated with a specific VLAN
or traffic that is not tagged for any VLAN. All packets that meet this criteria
received by any of the node’s radios are forwarded through the tunnel. If the
tunnel is not configured or not active, all corresponding packets are dropped.
If you specify untagged traffic, then the tunnel interface itself must be associated
with a VLAN. Refer to “Starting and Stopping Layer 2 Tunneling” on page 89.
The
tunnel unmap-vlan
command removes the tunnel mapping entry. After this
command, the specified packets are then forwarded as if the tunnel does not
exist.
Configuring the
Network Central
Router for
Layer 2 Tunneling
The specific configuration tasks and commands for the network central router
vary, depending on the type of router that is installed.
Refer to the
Tunnel Mobility Application Note
, available at
www.support.belairnetworks.com for guidance on configuring the Cisco 7200
router.