TP-Link TL-R600VPN Configuration Manual page 143

Configuring VPN
Account Name
Password
WAN
Server IP
IPSec
Encryption
Pre-shared Key
Remote Subnet
Upstream
Bandwidth
Downstream
Bandwidth
Working Mode
Status
2) Click OK.
Specify the account name of L2TP tunnel. It should be configured identically on
server and client.
Specify the password of L2TP tunnel. It should be configured identically on server
and client.
Specify the WAN port used for L2TP tunnel.
Specify the IP address or domain name of L2TP server.
Specify whether to enable the encryption for the tunnel. If enabled, the L2TP tunnel
will be encrypted by IPSec (L2TP over IPSec).
Specify the Pre-shared Key for IKE authentication.
Specify the remote network. (It's always the IP address range of LAN on the remote
peer of the VPN tunnel.) It's the combination of IP address and subnet mask.
Specify the uptream limited rate in Kbps for L2TP tunnel.
Specify the downstream limited rate in Kbps for L2TP tunnel.
Specify the Working Mode as NAT or Routing.
NAT: NAT (Network Address Translation) mode allows the router to translate
source IP address of L2TP packets to its WAN IP when forwarding L2TP packets.
Route: Route mode allows the router to forward L2TP packets via routing protocol.
Check the box to enable the L2TP tunnel.
L2TP Configuration
Configuration Guide 135