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1.
Type in User Name and Password provided by ISP.
2.
Type in PPTP Server IP Address.
3.
Select connection type. Please follow instructions from ISP. Enter Static WAN IP
Address/Subnet Mask/Gateway if necessary.
4.
Enter Primary DNS and Secondary DNS IP address if required by ISP provider.
5.
Enter MTU (Maximum Transmission Unit) value if required. The default value is
set at 1496.
NOTE:
It is recommended to set MTU value between 1200 and 1500 range.
6.
Click on Apply to confirm modifications.
7.
Click on Save to save modified settings.
L2TP Setting
Dial-up users typically use the PPP (Point-to-Point Protocol) for an Internet
connection. PPP is a layer 2 protocol that frames data so it can be sent across a
dial-up connection. The protocol allows users to run TCP/IP software such as Web
browsers as if they were directly connected to the Internet. In fact, user TCP/IP
packets are put into PPP frames for transport across the dial-up link to an ISP. The ISP
then extracts the TCP/IP packets and forwards them on the Internet. L2TP enhances
PPP by granting a means for a remote user to extend a PPP link across the Internet all
the way to a corporate site. In essence, a tunnel is established across the Internet
from the ISP to a corporate site and frames are transmitted through the tunnel. Once
the tunnel is set up, the ISP is essentially out of the picture and the user
communicates to the corporate network over what appears to be a direct dial-up
connection.
