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Chapter 12: Unit Sessions and Connections 161
2. Click the checkbox to the left of the sessions. To disconnect all sessions, click the checkbox to
the left of Duration at the top of the list. (If you do not have permission to disconnect an active
session, you will not be able to select its checkbox or the checkbox at the top of the list.)
3. Click Disconnect. A confirmation dialog box will appear.
For virtual media sessions on supported KVM switches - If you attempt to disconnect an active
virtual media session or a KVM session that is locked to a virtual media session, a
confirmation message is displayed, indicating that any virtual media mappings will be
disconnected. Confirm or cancel. See Using Virtual Media on page 252.
4. Confirm or cancel the disconnect.
Active modem sessions
In the event the primary network fails, you may establish a session to an ACS console server
through a modem/ISDN dial-up connection method. This connection may be established using the
SSH Passthrough client or the ACS console server plug-in. To configure the SSH Passthrough
settings, see Enabling SSH Passthrough on page 177. To configure the ACS console server plug-in
settings, see the ACS console server plug-in online help.
Secure connections
During the initial dial-up connection attempt, the DSView 3 DialUp service will authenticate the
ACS console server and establish a connection using a Point-to-Point Protocol (PPP). Password
Authentication Protocol (PAP) and Challenge Handshake Authentication Protocol (CHAP) are
supported. In addition to the PAP and CHAP methods, a One Time Password (OTP) authentication
may also be used for analog modem dial-up connections. (OTP is not supported on ISDN modems.)
A secret password will be generated for every dial-up request, and each password will only be valid
for a single attempt. Once authenticated, a secure connection will be established.
For added security, the ACS console server plug-in may also be configured for dial-back
connections. Once authenticated, the dial-up connection will be dropped, and the ACS console
server will dial-back to the DSView 3 server to establish a secure connection. This method does not
support OTP. To configure dial-back settings on the DSView 3 server, see DSView 3 software
modem sessions on page 63.
Only DSView 3 software administrators may access the Active Modem Sessions window.
Supported modems
The following modems and serial PCI cards are supported by the DSView 3 software, provided the
modems are supported on the DSView 3 server operating system.
• Perle PCI-RAS 4 and PCI-RAS 8, which are backwards compatible with Perle V90 Modem
• Equinox SST MM 4p Modem
• Equinox SST 4p Serial
• Eicon DS series ISDN BRI-2M
• Eicon DS series ISDN 4BRI-8M