User`s manual

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Chapter 5 Failover and OoB Dial Access
FAILOVER AND OoB DIAL-IN
Introduction
The console server has a number of fail-over and out-of-band access capabilities to make sure it’s
available if there are difficulties accessing the console server through the principal network path. This
chapter covers:
 out-of-band (OoB) access from a remote location using dial-up modem.
 out-dial failover.
 OoB access using an alternate broadband link (LES1208A, LES1216A, and LES1248A
models only).
 broadband failover.
5.1 OoB Dial-In Access
To enable OoB dial-in access, you first configure the console server. Once it’s set up for dial-in PPP
access, the console server will await an incoming dial-in connection. Set up the remote client dial-in
software so it can establish a network connection from the Administrator’s client modem to the dial-in
modem on the console server.
Note The LES1208A, LES1216A, and LES1248A models all have an internal modem and a DB9
Local/Console port for OoB access. With these models, you can still attach an external modem
via a serial cable to the DB9 port, and you can configure the second Ethernet port for broadband
OoB access.
Make sure you unplug the console server power before installing the modem. When it next boots,
it will detect the modem and a PC Card Modem tab will appear under System -> Dial.
The LES1108A, LES1116A, and LES1148A models need to have an external modem attached
via a serial cable to the DB9 port marked Local (located on the front of the unit).
Dial-in
management
Modem