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• Select the Authentication Type required. Access is denied to remote users attempting to connect using an authentication
scheme weaker than the selected scheme. The schemes are described below, from strongest to weakest.
o Encrypted Authentication (MS-CHAP v2): This is the strongest type of authentication to use and is the recommended
option.
o Weakly Encrypted Authentication (CHAP): This is the weakest type of encrypted password authentication to use. It
is not recommended that clients connect using this, as it provides very little password protection. Also, note that clients
connecting using CHAP are unable to encrypt traffic.
o Unencrypted Authentication (PAP): This is plain text password authentication. When using this type of authentication,
the client password is transmitted unencrypted.
o None.
• Select the Required Encryption Level. Access is denied to remote users attempting to connect not using this encryption
level. Strong 40-bit or 128-bit encryption is recommended.
Notes:
Firmware version 3.5.2 and beyond support multiple dial-in users with dial-in group membership. The Username and Password to be used
for the dial-in PPP link, and any dial-back phone numbers are configured when the User is set up. Earlier firmware is only supported for one
PPP dial-in account.
Section 13. Management contains examples of Linux commands that can be used to control the modem port operation at the command
line level.
5.2.2 Using SDT Connector Client
Administrators can use their SDT connector client to set up secure OOB dial-in access to remote console servers. The
SDT connector Java client software provides point-and-click secure remote access. OOB access uses an alternate path for
connecting to the console server to that used for regular data traffic.
Starting an OOB connection in SDT connector may be achieved by initiating a dial-up connection, or adding an alternate route
to the console server. SDT connector allows for maximum flexibility is this regard by allowing you to provide your own scripts or
commands for starting and stopping the OOB connection. Refer 6.5 Using SDT Connector for Out-of-Band Connection to
the Gateway for more information.
5.2.3 Set Up Windows XP or Later Client
Open Network Connections in Control Panel and click the New Connection Wizard.
Select Connect to the Internet and click Next.
On the Getting Ready screen, select Set up my connection manually and click Next.
On the Internet Connection screen, select Connect using a dial-up modem and click Next.
Enter a Connection Name (any name you choose) and the dial-up Phone number that will connect to the console server
modem.
Enter the PPP Username and Password to set up for the console server.
5. Firewall, Failover and OOB Access
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