NetComm NTC-220 User Manual page 80

3 Click the Enable PPTP client toggle key to switch it to the ON position.
4 In the Profile name field, enter a profile name for the tunnel. This may be anything you like and is used to
identify the tunnel on the router.
5 Use the Username and Password fields to enter the username and password for the PPTP account.
6 In the PPTP server field, enter the IP address /host domain name of the PPTP server.
7 From the Authentication type drop-down list, select the Authentication type used on the server. If you do
not know the authentication method used, select any and the router will attempt to determine the correct
authentication type for you. There are 5 authentication types you can choose from:
CHAP – uses a three-way handshake to authenticate the identity of a client.
MS-CHAP v1 – This is the Microsoft implementation of the Challenge Handshake Authentication
Protocol for which support was dropped in Windows® Vista.
MS-CHAP v2 - This is the Microsoft implementation of the Challenge Handshake Authentication
Protocol which was introduced in Windows® NT 4.0 and is still supported today.
PAP – The Password Authentication Protocol uses a password as a means of authentication and as
such, is commonly supported. PAP is not recommended because it transmits passwords unencrypted
and is not secure.
EAP – Extensible Authentication Protocol. An Authentication protocol commonly used in wireless
networks.
8 The Metric value helps the router to prioritise routes and must be a number between 0 and 65535. The
default value is 30 and should not be modified unless you are aware of the effect your changes will have.
9 Enter the size of the MTU (Maximum Transmission Unit). The PPTP tunnel has a 40 byte overhead meaning
the maximum value that this should be set to is 1300.
10 The Use peer DNS option allows you to select whether the remote clients will use the Domain Name Server
of the PPTP server. Click the toggle key to set this to ON or OFF as required.
11 NAT masquerading allows the router to modify the packets sent and received to inform remote computers
on the internet that packets originating from a machine behind the router actually originated from the WAN
IP address of the router's internal NAT IP address. Click the toggle key to switch this to the ON position if
you want to use this feature.
12 Set PPTP server as default gateway sets all outbound data packets to go out through the PPTP tunnel. Click
the toggle key to switch this to the ON position if you want to use this feature.
13 The MPPE toggle key turns the Microsoft Point-to-Point Encryption feature ON or OFF. This is used to
secure transmissions. Set this as desired.
14 In the Extra PPP option field, specify any extra commands or parameters that you wish to use when the PPP
connection is established.
15 The Verbose logging option sets the router to output detailed logs regarding the PPTP connection in the
System Log section of the router interface.
16 The Reconnect delay is the time in seconds that the router will wait before attempting to connect to the
PPTP server in the event that the connection is broken. The minimum time to wait is 30 seconds so as to not
flood the PPTP server with connection requests, while the maximum time to wait is 65335 seconds.
17 The Reconnect retries is the number of connection attempts that the router will make in the event that the
PPTP connection goes down. If set to 0, the router will retry the connection indefinitely, otherwise the
maximum number of times to retry cannot be greater than 65335.
18 Click the Save button to save the changes. The VPN will attempt to connect after you click Save. Click the
Status button at the top left of the interface to return to the status window and monitor the VPN's
connection state.
NTC-220 – User Guide
UG01028 v1.2 March 2019
80 of 193
© NetComm Wireless 2019