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7-2 Reference Guide
Suggested security measures
In addition to setting up user accounts, Telnet access, and filters
(all of which are covered later in this chapter), there are other
actions you can take to make the Netopia Router and your network
more secure:
■ If you will be using a PC Card modem for dial-up access through
a telephone line, keep the phone number secure and be sure to
set passwords to protect the configuration screens.
■ Change the SNMP community strings (or passwords). The
default community strings are universal and could easily be
known to a potential intruder.
■ Set the answer profile so it must match incoming calls to a
connection profile, if you are using a switched line and CallerID.
■ Where possible, insist on using PAP, CHAP, or secure
authentication token card to authenticate connections to and
from connection profiles.
■ When using AURP, accept connections only from configured
partners.
■ Configure the Netopia Router through the serial or PC card
console port to ensure that your communications cannot be
intercepted.
User accounts
When you first set up and configure the Netopia Router, no
passwords are required to access the configuration screens.
Anyone could tamper with the router’s configuration by simply
connecting it to a console.
However, by adding user accounts, you can protect the most
sensitive screens from unauthorized access. User accounts are
composed of name/password combinations that can be given to
authorized users.