Device Configuration 5 - 73
Figure 5-43 Network - L2TPv3 screen - Add L2TPv3 Tunnel Configuration - Settings screen
15. Define the following Settings required for the L2TP tunnel configuration:
Local IP Address Enter the IP address assigned as the local tunnel end point address, not the interface IP
address. This IP is used as the tunnel source IP address. If this parameter is not specified,
the source IP address is chosen automatically based on the tunnel peer IP address. This
parameter is applicable when establishing the tunnel and responding to incoming tunnel
create requests.
MTU Set the maximum transmission unit (MTU). The MTU is the size (in bytes) of the largest
protocol data unit the layer can pass between tunnel peers. Define a MTU between
128 - 1,460 bytes. The default setting is 1,460. A larger MTU means processing fewer
packets for the same amount of data.
Use Tunnel Policy Select the L2TPv3 tunnel policy. The policy consists of user defined values for protocol
specific parameters which can be used with different tunnels. If none is available a new
policy can be created or an existing one can be modified. For more information, refer to
L2TP V3 Configuration on page 7-8.
Local Hostname Provide the tunnel specific hostname used by this tunnel. This is the hostname advertised
in tunnel establishment messages.
Local Router ID Specify the router ID sent in tunnel establishment messages with a potential peer device.
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