Point to Point Tunneling Protocol (PPTP) Virtual Private Network (VPN) Remote access PPTP VPN Maximum Transmission Unit (MTU) External IP address to which VPN clients will connect IPv4 Domain Name Service (DNS) server Primary DNS server ipv4 IPv4 address Secondary DNS server ipv4 IPv4 address Windows Internet Name Service (WINS) server settings Primary WINS server Secondary WINS server Pool of client IP addresses (must be within a /24) First IP address in the pool (will be used as gateway address) Last IP address in the pool Gatway address uses as client tunnel termination point Authentication for remote access PPTP VPN Authentication protocol for remote access peer PPTP VPN pap Require the peer to authenticate itself using PAP [Password Authentication Protocol]. chap Require the peer to authenticate itself using CHAP [Challenge Handshake Authentication Protocol]. mschap Require the peer to authenticate itself using CHAP [Challenge Handshake Authentication Protocol]. mschap-v2 Require the peer to authenticate itself using MS-CHAPv2 [Microsoft Challenge Handshake Authentication Protocol, Version 2]. Specifies mppe negotioation preference. (default require mppe 128-bit stateless deny deny mppe prefer ask client for mppe, if it rejects do not fail require ask client for mppe, if it rejects drop connection (deny|prefer|require) deny prefer require Authentication mode for remote access PPTP VPN local Use local username/password configuration radius Use a RADIUS server to autenticate users (local|radius) local radius Local user authentication for remote access PPTP VPN User name for authentication Option to disable a PPTP Server user Password for authentication Static client IP address RADIUS specific configuration IP address of radius server ipv4 IP address of RADIUS server Key for accessing the specified server Maximum number of simultaneous requests to server (default: unlimited) If server does not responds mark it as unavailable for this time (seconds)