Zycoo CooVox T Series, Admin & User Manual

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- 120 - ZYCOO CooVox T-series IP Phone System Admin User Guide v4.0.0
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Remote IP : PPTP VPN remote network IP range, there must be 10 or less available IP addresses between start
IP and end IP.
l Local IP : PPTP VPN local server IP address.
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Primary DNS : Primary DNS for VPN connection.
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Alternative DNS : Secondary DNS for VPN connection.
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Timeout(S) : Session timeout for PPTP tunnels.
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Authentication Method : Choose method/methods for the authentication of the VPN clients.
n chap : Challenge Handshake Authentication Protocol, CHAP takes a more sophisticated and secure
approach to authentication by creating a unique challenge phrase (a randomly generated string) for
each authentication.
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pap : Password Authenticate Protocol PAP works like a standard login procedure; it uses static username
and password to authenticate the remote system.
n mschap : MS-CHAP is the Microsoft version of the Challenge-Handshake Authentication Protocol.
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mschap- : Microsoft Challenge Handshake Authentication Protocol version 2 (MS-CHAP), this provides
stronger security for remote access connections.
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Enable MPPE128 Encryption : Microsoft Point-to-Point Encryption (MPPE) encrypts data in Point-to-Point
Protocol (PPP)-based dial-up connections or Point-to-Point Tunneling Protocol (PPTP) virtual private network
(VPN) connections with 128-bit key.
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Debug : Enable debug for PPTP VPN connection, debug information will be written into system logs.
Once server configurations done, you may create PPTP client users, each user created is for a VPN client to
connect. PPTP VPN server on CooVox-V series IPPBX can connect up to 20 PPTP VPN clients.