17
Running the Setup Wizard
Understanding connection types
If you are using the security gateway on a pre-existing broadband cable connection, you can change the
appliance to match the existing MAC address. If this is a new connection, you can obtain the physical
address in the Setup Wizard for your ISP.
DSL
DSL ISPs may provide Internet service by allocating IP addresses by DHCP, or they may assign your
account a static IP address.
DSL ISPs also use Point-to-Point Protocol over Ethernet (PPPoE) or Point-to-Point Tunneling Protocol
(PPTP) technologies for user authentication of network connections.
PPPoE
Point-to-Point Protocol over Ethernet (PPPoE) is used by many Asymmetrical Digital Subscriber Line
(ASDL) providers. It is a specification for connecting many users on a network to the Internet through a
single dedicated medium, such as a DSL account.
You can specify whether you connect or disconnect your PPPoE account manually or automatically. This is
useful to verify connectivity.
You can configure the appliance to connect only when an Internet request is made from a user on the LAN
(for example, browsing to a Web site) and disconnect when the connection is idle (unused). This feature is
useful if your ISP charges on a per-usage time basis.
You can use multiple logins (if your ISP account allows multi-session PPPoE) to obtain additional IP
addresses for the WAN. These are called PPPoE sessions. The login may be the same user name and
password as the main session or may be different for each session, depending on your ISP. Up to five
sessions or IP addresses are allowed for models 420 and 440 and up to three sessions for each WAN port on
models 460 and 460R. LAN hosts are bound to a session on the Computers tab in the SGMI.
Note:
Multiple IP addresses on a WAN port are only supported for PPPoE connections.
By default, all settings are associated with Session 1. For multi-session PPPoE Accounts, configure each
session individually. If you have multiple PPPoE accounts, assign each one to a different session in the
SGMI.
Before configuring the WAN ports to use a PPPoE account, gather the following information:
■
User name and password
All PPPoE accounts require user names and passwords. Get this information from your ISP before
configuring PPPoE.
■
Static IP address
You may have purchased or are assigned a static IP address for the PPPoE account.
PPTP
Point-to-Point-Tunneling Protocol (PPTP) is a protocol that enables secure data transfer from a client to a
server by creating a tunnel over a TCP/IP-based network. Symantec Gateway Security 400 Series
appliances act as a PPTP access client (PAC) when you connect to a PPTP Network Server (PNS), generally
with your ISP.
Some ADSL ISPs charge for connection time. The Symantec Gateway Security 400 Series reduces these
costs by only connecting to your ISP when you use the Internet, and disconnecting when you are idle.
Before beginning PPTP configuration, gather the following information:
■
PPTP server IP address
IP address of the PPTP server at the ISP.
