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5.4.2 Failover dial-‐out
The
console server
modem can be configured so a dial-‐out PPP connection is automatically set up in the
event of a disruption in the principal management network.
When configuring the principal network connection in
System: IP
specify the
Failover Interface
that will be used when a fault has been detected with Network / Network1 (eth0). This can be
either
Internal Modem
or the
Dial Serial DB9
(if you are using an external modem on the
Console port) or
USB Modem
Specify the
Probe Addresses
of two sites (the
Primary
and
Secondary
) that the IMG/IM
console
server
is to
ping
to determine if Network / Network1 is still operational
Select the
System: Dial
menu option and the port to be configured (
Serial DB9 Port
or
PC Card
or
Internal Modem Port
)
Select the
Baud Rate
and
Flow Control
that will communicate with the modem
Note
You can further configure the console/modem port (
for example,
to include
modem init
strings) by
editing
/etc/mgetty.config
files as described in Chapter 13.
5.5
Cellular Modem connection
The LES1408A, LES1416A, LES1432A, LES1448A, LES1308A, LES1316A, LES1332A and LES1348A
console servers
have an internal cellular modem. The LES1508A, LES1208A-R2, LES1216A-R2,
LES1232A and LES1248A-R2
console servers
support external cellular modems.
-
These modems first need to be set up to validate they can connect to the carrier network.
-
They then can be configured for operation in Failover mode, OOB mode, Cellular router mode or
CSD mode.
5.6.1
Connect to the GSM HSUPA/UMTS carrier network
The LES1308A, LES1316A, LES1332A and LES1348A
console servers
have an internal GSM modem
that will connect to any major GSM carrier globally. The LES1508A, LES1208A-R2, LES1216A-R2,
LES1232A and LES1248A-R2
console servers
also support attaching an external USB GSM/HSPA
cellular modem from Sierra Wireless to one of its USB 2.0 ports.
Before powering on the
console server
you must install the SIM card provided by your cellular carrier, and
attach the external aerial.
Select
Internal Cellular Modem
panel on the
System: Dial
menu
Check
Enable Dial-Out Settings