3Com OfficeConnect 3C857, User Manual

Page: 55 / 120

Internet Settings 55
Internet Settings
Before you can configure the Gateway, you need to know the IP
information allocation method used by your ISP. There are four different
ways that ISPs can allocate IP information, as described below:
1 Static IP Address (DSL or Cable)
The ISP provides the IP addressing information for you to enter manually.
To configure the Gateway you will need to know the following:
■
IP Address
■
Subnet Mask
■
ISP Gateway
■
DNS address(es)
2 Dynamic IP Address (DSL or Cable)
Dynamic IP addressing (or DHCP) automatically assigns the Gateway IP
information. This method is popular with Cable providers. This method is
also used if your modem has a built in DHCP server.
3 PPPoE (DSL only)
If the installation instructions that accompany your modem ask you to
install a PPPoE client on your PC, then select this option. To configure the
Gateway you will need to know the following:
■
Username
■
Password
■
Service Name (if required by your ISP)
When you install the Gateway, you will not need to use the PPPoE
software on your PC.
4 PPTP (DSL or Cable)
PPTP is only used by some European providers. If the installation
instructions that accompany your modem ask you to setup a dialup
connection using a PPTP VPN tunnel then select this option. To configure
the Gateway you will need to know the following:
■
Username
■
Password
■
VPN Server address (usually your modem)