Welcome to the ZyXEL Networking Glossary - your definitive source for descriptions of networking terms and ZyXEL's product features.
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L2TP VPN lets remote users use the L2TP and IPSec client software included with their computers' operating systems to securely connect to the network behind the L2TP IPSec router. The remote users do not need their own IPSec gateways or VPN client software. In L2TP VPN, an IPSec VPN tunnel is established first and then an L2TP tunnel is built inside it. See also IPSec.