Black Box LES1508A - 5 FIREWALL, FAILOVER and Oob DIAL-IN; Dialup Modem Connection; Oob Dial-In Access

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Chapter 5 Firewall, Failover and OoB Dial Access
FIREWALL, FAILOVER AND OoB DIAL-IN
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The console server has a number of out-of-band access capabilities and transparent fail-over features, to
ensure high availability. So if you have difficulty accessing the console server through the main network
path, all console server models provide out-of-band (OOB) access and the Administrator can still access
it (and its Managed Devices) from a remote location.
 All console server models support serially attaching an external dial-up modem and configuring
dial-in OOB access. Some models with USB ports support attaching an external USB modem.
Some models also come standard with an internal modem. These modems can also be configured
for dial-in OOB access.
 All console server models with an internal or externally attached modem (and V3.4 firmware or
later) can be configured for out-dial to be permanently connected.
 The advanced console server models can also be configured for transparent out-dial failover. So if
the principal management network is disrupted, an external dial-up ppp connection is
automatically established.
 These advanced console server models can also be accessed out-of-band using an alternate
broadband link and also offer transparent broadband failover.
 Models with an internal cellular modem can be configured for OOB cellular access or for cellular
transparent failover or can be configured as a cellular router.
5.1 Dialup Modem Connection
To enable dial-in or dial-out you must first ensure there is a modem attached to the console server.
- The >?;@ABCDE!>?;@IBCDE!>?;@I@FDE!>?;@IGHDE!>?;@IICDE!>?;@GBCDE! >?;@G@FDE!>?;@GGHDE!+,5!
>?;@GICD!come with an internal modem that can provide for OOB dial-in access. These models
will display an Internal Modem Port tab under System -> Dial (as well as the Serial DB9 Port tab)
- The LES1208A-R2, LES1216A-R2, LES1232A, and LES1248A-R2 need to have an external
modem attached via a serial cable to their DB9 port. This port is marked Local and is located on
the back of the units.
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