Pptp - NetComm NTC-400 Series User Manual

Item
1 - 99999 for
Interval Time
1 - 999 for Failure
Times
Service Port Mandatory field.
Value Range: 0 -
65535
Tunnel Disabled by
default.
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6.1.4

PPTP

Point‐to‐Point Tunnelling Protocol (PPTP) is a method for implementing virtual private networks. It is a client‐server based
technology. PPTP uses a control channel over TCP and a GRE tunnel operating to encapsulate PPP packets. There are various
levels of authentication and encryption for PPTP tunnelling, usually natively as standard features of the Windows PPTP stack.
The security router can play either "PPTP Server" role or "PPTP Client" role for a PPTP VPN tunnel, or both at the same time
for different tunnels. PPTP tunnel process is nearly the same as L2TP.
PPTP Server – It must have a static IP or a FQDN for clients to create PPTP tunnels. It also maintains "User Account list" (user
name / password) for client login authentication; There is a virtual IP pool to assign virtual IP to each connected PPTP client.
PPTP Client – This can be mobile users or routers in remote offices with dynamic IP. To setup tunnel, it should get "user
name", "password" and server's global IP. In addition, it is required to identify the operation mode for each tunnel as main
connection, failover for another tunnel, or load balance tunnel to increase overall bandwidth. It needs to decide "Default
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Notes
User‐defined – enter the Interval and Max. Failure Time.
The default value for Interval is 30 seconds, and Maximum Failure Times
is 6 times
Disable – disable the LCP Echo.
Specify the Service Port for this L2TP tunnel to use: Auto, (1701) for Cisco), or
User‐defined
Auto – The system determines the service port.
1701 (for Cisco) – The system use port 1701 for connecting with CISCO L2TP
Server.
User‐defined – Enter the service port. The default value is 0.
Check  Enable to enable this L2TP tunnel.
Click Save to create the client account.
Click Undo button to cancel the settings.
Click Back button to return to the previous page.
Table 161 – L2TP Client Configuration
Description
User Guide