
70 MetaFrame Solutions Guide
Ease of use. By utilizing a standards-based solution dedicated to remote access,
the ExtendNet VPN is easy to set up and configure. Interoperability is achieved
using standard PPTP and Simple Network Management Protocol (SNMP)
communication specifications.
Requirements
Hardware
K
File server
K
An available 10Base-T, 10Base-2, or 100Base-TX network connection for the
VPN server
K
Dedicated Internet connection at the MetaFrame site
K
Management console in the form of a PC running Windows 95 or Windows
NT 4.0 to run the management software (InterprEYES Manager and Monitor)
K
Remote clients with dial out capability (modem, etc.) and access to the Internet
through an account with an ISP
Software
K
MetaFrame Version 1.8 for Windows 2000
K
Microsoft Windows 2000 with Terminal Services installed
K
Remote clients running Windows 95, Windows 98, or Windows NT
K
Remote Windows 95 or Windows 98 must have Dial-Up Networking (DUN)
Version 1.3 with the Microsoft VPN option enabled
K
Remote Windows NT clients must have Service Pack 4 installed
K
Network Operating System (NOS) protocol supporting TCP/IP
System Integration
Before you proceed, make sure that Microsoft Windows 2000 and Citrix
MetaFrame are already installed on the server and that the server is configured to
accept TCP ICA connections.
K
ExtendNet VPN serves as a gateway between the Citrix network and the
Internet. Because the ExtendNet VPN functions on the TCP/IP layer (the
network and transport layers of the OSI model), remote users can authenticate
to the ExtendNet VPN, receive an IP address that is valid for the local subnet,
and then authenticate to the Citrix MetaFrame server as if physically connected
to the MetaFrame server’s network.
K
Firewall and/or router configuration. The ExtendNet VPN utilizes Microsoft’s
PPTP for encapsulating and encrypting the packets during transmission over
the Internet. PPTP requires that two packet types are passed to the PPTP server
(in this case, the ExtendNet VPN). Data packets are PPP packets encapsulated
Note
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