About Pptp; Pptp Vpn Client - McAfee SG310 Administration Manual

VPN menu features

About PPTP

Figure 237 VPN example
PPTP or L2TP are also commonly used to secure connections from a guest network. For more information,
see Guest network.
About PPTP
PPTP is typically used for communications over a physical or virtual serial link. The PPP endpoints define a
virtual IP address to themselves. Routes to networks can then be defined with these IP addresses as the
gateway, which results in traffic being sent across the tunnel. PPTP establishes a tunnel between the
physical PPP endpoints and securely transports sessions data across the tunnel.
PPTP consists of two protocols:
• TCP port 1723 is used for establishing the tunnel and managing the GRE tunnel
• GRE (Generic Routing Encapsulation) IP protocol 47 is used for encrypting and encapsulating PPP session
data over GRE
The UTM Firewall appliance can operate as a PPTP client or a PPTP server. The configuration of the
appliance defines which networks are accessible via the tunnel. The appliance initiates the PPTP tunnel with
a specified PPTP server. The UTM Firewall appliance configured as a PPTP client acts as the local gateway for
users behind the firewall. When the appliance operates as a PPTP server, a remote client initiates the PPTP
tunnel. The appliance authenticates the client. A remote client can be a Windows device for single user
access, or it can be a gateway such as another UTM Firewall appliance configured as a PPTP client, thereby
allowing multiple user access.

PPTP VPN Client

Use this procedure to configure a PPTP VPN client. The PPTP client enables the UTM Firewall appliance to
establish a VPN to a remote network running a PPTP server, usually a Microsoft Windows server.
From the VPN menu, click PPTP, and select the PPTP VPN Client tab. The PPTP VPN Client page appears
1
(Figure 238).
Figure 238 PPTP VPN Client Setup page
Click New. The Edit VPN Connection page appears
2
240 McAfee UTM Firewall 4.0.4 Administration Guide
(Figure 239).