Actiontec electronic RI408 - page 45

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Actiontec Broadband Router User Manual
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Chapter 4 Using Network Connections
Login User Name Enter the user name (provided by the ISP) in this text box.
Login Password Enter the password (provided by the ISP) in this text box.
Support Unencrypted Password (PAP) Password Authentication Protocol (PAP)
is a simple, plain-text authentication scheme. The user name and password are
requested by the networking peer in plain-text. PAP, however, is not a secure
authentication protocol. Man-in-the-middle attacks can easily determine the
remote access client’s password. PAP offers no protection against replay attacks,
remote client impersonation, or remote server impersonation.
Support Challenge Handshake Authentication (CHAP) Click in this check box to
activate CHAP, a challenge-response authentication protocol that uses MD5 to
hash the response to a challenge. CHAP protects against replay attacks by using
an arbitrary challenge string per authentication attempt.
Support Microsoft CHAP Click in this check box if communicating with a peer
that uses Microsoft CHAP authentication protocol.
Support Microsoft CHAP Version 2 Select this check box if communicating with a
peer that uses Microsoft CHAP Version 2 authentication protocol.
PPP Compression
The PPP Compression Control Protocol (CCP) is responsible for configuring,
enabling, and disabling data compression algorithms on both ends of the point-
to-point link. It is also used to signal a failure of the compression/ decompres-
sion mechanism in a reliable manner.
For each compression algorithm (BSD and Deflate), select one of the following
from the drop-down list:
Reject Selecting this option rejects PPP connections with peers that use the com-
pression algorithm. If Reject is activated, throughput may diminish.
Allow Selecting this option allows PPP connections with peers that use the com-
pression algorithm.
Require Selecting this option insures a connection with a peer using the com-
pression algorithm.