Motorola Netopia 3342N - Manual (Page 352)

Administrator’s Handbook
352
3.
The unit sends the scrambled challenge back to the peer.
PAP, a less robust method of authentication, sends a username and password to a PPP ser ver to be
authenticated. PAP’s username and password pair are not encr ypted, and are therefore sent “unscram-
bled”.
Instant-On PPP
You can configure your Gateway for one of two types of Internet connections:
• Always On
• Instant On
These selections provide either an uninterrupted Internet connection or an as-needed connection.
While an Always On connection is convenient, it does leave your network permanently connected to the
Internet, and therefore potentially vulnerable to attacks.
Motorola Netopia®'s Instant On technology furnishes almost all the benefits of an Always-On connection
while providing two additional security benefits:
• Your network cannot be attacked when it is not connected.
• Your network may change address with each connection making it more difficult to attack.
When you configure Instant On access, you can also configure an idle time-out value. Your Gateway moni-
tors traffic over the Internet link and when there has been no traffic for the configured number of seconds,
it disconnects the link.
When new traffic that is destined for the Internet arrives at the Gateway, the Gateway will instantly re-estab-
lish the link.
Your ser vice provider may be using a system that assigns the Internet address of your Gateway out of a
pool of many possible Internet addresses. The address assigned varies with each connection attempt,
which makes your network a moving target for any attacker.
Simplified Local Area Network Setup
DHCP (Dynamic Host Configuration Protocol) Server
DHCP Ser ver functionality enables the Gateway to assign to your LAN computer(s) a “private” IP address
and other parameters that allow network communication. The default DHCP Ser ver configuration of the
Gateway suppor ts up to 253 LAN IP addresses.
This feature simplifies network administration because the Gateway maintains a list of IP address assign-
ments. Additional computers can be added to your LAN without the hassle of configuring an IP address.