Posts Tagged ‘modem’

Callback Security – An Important Feature for Modem-Based Console Server Applications

Friday, May 13th, 2011

When managing network devices at extremely remote installation sites, it’s not always possible to establish a connection with a console server unit via network cable. In cases like this, network administrators often rely on an old fashioned dial-up modem connection in order to communicate with the console server and other devices at the remote site. Although dial-up is obviously slower than a network connection, it serves well for administrators who need to check status or perform troubleshooting functions at these remote sites.


Callback Security Protects Modem Access to Remote Console Servers

Friday, February 18th, 2011

There are many console server applications that still rely on a dial-up modem. For some applications, communication via modem provides the only means to establish an out of band connection with the console server in order to communicate with a remote network device. The main drawback with communication via modem (other than speed) is that many authentication protocols are not supported for modem communication. This means that console servers that are accessed via modem need an alternative means to authenticate user identity; the most popular and effective means to verify modem-based users is callback security.


Out of Band Management – Access Command Functions on Remote Network Devices

Monday, February 7th, 2011

Out of band management provides a vital tool for network administrators by enabling secure, reliable communication with network devices even when the main network is down or not available. An intelligently planned out of band management solution helps to cut network maintenance costs by reducing costly service calls to remote equipment installations, and by providing administrators with a means to communicate with important devices without adding traffic to the main users network.