ICR-1601
147
4.1.3 L2TP
Layer 2 Tunneling Protocol (L2TP) is a tunneling protocol used to support virtual private networks
(VPNs) or as part of the delivery of services by ISPs. It does not provide any encryption or confidentiality by
itself. Rather, it relies on an encryption protocol that it passes within the tunnel to provide privacy. This
Router can only behave as a L2TP client for a L2TP VPN tunnel.
L2TP Client: It can be mobile users or gateways in remote offices with dynamic IP. To setup tunnel, it
should get “user name”, “password” and server’s global IP. In addition, it is required to identify the
operation mode for each tunnel as main connection, failover for another tunnel to increase overall
bandwidth. It needs to decide “Default Gateway” or “Remote Subnet” for packet flow. Moreover, you can
also define what kind of traffics will pass through the L2TP tunnel in the “Default Gateway / Remote Subnet”
parameter.
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