Zonet ZSR4154WS User Manual page 21

d. L2TP
L2TP Server IP: Enter the Server IP provided by your ISP.
User Name: Enter L2TP username.
Password: Enter L2TP password.
MTU: Maximum Transmission Unit, you may need to change it for optimal
performance with your specific ISP. 1400 is the default MTU.
Address Mode: Select Static if your ISP supplies you with the IP address,
subnet mask, and gateway. In most cases, select Dynamic.
IP Address: Enter the L2TP IP address supplied by your ISP.
Subnet Mask: Enter the Subnet Mask supplied by your ISP.
Default Gateway: Enter the Default Gateway supplied by your ISP.
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