L2TP Client 
 
Gateway (L2TP Server): L2TP server’s IP Address or DNS Name 
Remote Subnet: The networks of remote L2TP server 
Remote Subnet Mask: Subnet mask of remote L2TP server 
MPPE Encryption: Enable or disable Microsoft Point-to-Point Encryption 
MTU: Maximum transmission unit 
MRU: Maximum receive unit 
NAT: Network address translation 
User Name: User name to login L2TP Server 
Password: Password to login L2TP Server 
Require CHAP: Enable or disable support chap authentication protocol 
Refuse PAP: Enable or disable refuse to support the pap authentication 
Require Authentication: Enable or disable support authentication protocol