T1 AND E1 REMOTE ACCESS CONCENTRATORS
60
4.3.8 F
LASH
D
OWNLOAD
(U
PGRADING THE
F
IRMWARE
)
There are several methods available for upgrading your Remote Access Concentrator’s firmware. The first time
you do so—and each subsequent time you upgrade a single Concentrator, or every time you upgrade if you
aren’t using CSM—you’ll probably want to use the Concentrator’s Local Management utility as described in this
section. (For this upgrade method, a TFTP server is required.) If you’re using CSM in a multiple-Concentrator
system, however, it will probably be easier to use other methods available through CSM to simultaneously
upgrade your Concentrators; see
Section 5.3
.
To use the Local Management utility to upgrade a Concentrator’s firmware, take these steps:
1. Check your TFTP-server setup. The TFTP server must be “available” to the Concentrator, meaning it must
either
be
on the same LAN as the Concentrator, or
appear to be
on the same LAN. Specifically, one of these
conditions needs to be true:
• The Concentrator and the TFTP server are on the same physical and logical LAN subnet.
(This is the recommended case.)
• The Concentrator and TFTP server are on the same logical LAN subnet and “appear to be”
on the same physical LAN subnet (there’s some sort of bridge between them).
• The Concentrator and the TFTP server are on different logical subnets (even if they’re on the same
physical subnet). In this case, a gateway (router) is required, and you’ll have to configure a TFTP
Gateway Server IP address (refer to step 5e). Note that you can also set this address in the
Concentrator’s General Configuration screen (see
Section 4.3.6
); if you change the address here,
the change will be automatically reflected in that screen, and vice versa.
You should also be aware that if you use a BootP server located on a different physical subnet, the
router between the Concentrator and the BootP server must be configured as a DHCP Relay Agent;
see your router’s documentation for instructions on how to do this.
2. Make sure the TFTP server is up and running.
3. If you haven’t done so already, download the archive file that contains the latest version of
the Concentrator’s firmware. This should be on the Black Box Web site; if you can’t find it,
call Black Box Tech Support.
4. Copy the firmware-upgrade archive file onto the TFTP server. If this file is zipped, unzip it; if it’s a self-
extracting executable (that is, if it has a “.EXE” file extension), run it to extract the firmware file(s) it
contains. Make sure that all of the unzipped/extracted files are in the same folder or directory.
5. Access the Concentrator’s Local Management utility. You may do so locally through the local console
connection or remotely using Telnet.
6. Select the Module Configuration from the utility’s Module Menu.
