User guide

VT2542 Voice Gateway User Guide 17
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Configuration: Basic Advanced TCP/IP Wireless
PPTP Settings
If you are connecting to a virtual private network (VPN), consult with your network administrator regarding the
appropriate Point-to-Point Tunneling Protocol (PPTP) settings for your VPN. The PPTP settings are:
Enable Enables PPTP on your VT2542
Username Provided by your ISP
Password Provided by your ISP
Server IP Sets the IP address of the server for the VPN, in dotted-decimal format
MPPC Enables Microsoft Point-To-Point Compression (MPPC)
MPPE Enables Microsoft Point-to-Point Encryption (MPPE)
Strength Works with the MPPE feature when the field is checked and enabled
Three encryption strengths are supported by the client:
• 40-bit
• 56-bit
• 128-bit (highest)
Stateless
Authentication
You can choose:
• Auto — System automatically verify information
• CHAP — Challenge Handshake Authentication Protocol
• PAP — Password Authentication Protocol
• MSCHAP — Microsoft Challenge Handshake Authentication Protocol
• MSCHAP-v2 — Microsoft Challenge Handshake Authentication Protocol version 2
Debug Enable or disable the PPTP client application in order to display debug information