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im Vertrieb von
Ethernet Connection, cont'd
Determining whether devices are on the same subnet
To determine the subnet, the local device's IP address is compared to the remote
device's IP address (figure A-4). Each address's subfields are compared or not
compared, depending on the value in the related subnet mask subfield.
•
•
If the unmasked subfields of the two IP addresses match (indicated by = in
figure A-4) (Example 1), the two addresses are on the same subnet. If the two
unmasked fields do not match (indicated by ≠ ) (Example 2), the addresses are not
on the same subnet.
Figure A-4 — Comparing the IP addresses
Telnet
It is not the intention of this manual to detail all of the operations and functionality
of Telnet, however some basic level of understanding is necessary for operating the
Matrix 12800 via Telnet.
Default address
To access the Matrix 12800 switcher via the Ethernet port, you will need the Extron
IP address. If the address has been changed to an address comprised of words and
characters, the actual numeric IP address can be determined using the Ping utility.
If the address has not been changed, the factory-specified default is 192.168.254.254.
Ping can also be used to test the Ethernet link to the Matrix 12800.
Ping to determine Extron IP address
The Microsoft Ping utility is available at the DOS prompt. Ping tests the Ethernet
interface between the computer and the Matrix 12800. Ping can also be used to
determine the actual numeric IP address from an alias and to determine the Web
address.
Access the DOS prompt and Ping the matrix switcher as follows:
1.
2.
3.
4.
www.camboard.de
A-4
Matrix 12800 Switchers • Ethernet Connection
CAMBOARD Electronics
If a subnet mask subfield contains the value 255, the related subfields of the
local device's address and the remote device's IP address are unmasked.
Unmasked subfields are compared (indicated by ? in figure A-4).
If the subnet mask subfield contains the value 0, the related subfields of the
local device's and remote device's IP addresses are masked.
Masked subfields are not compared (indicated by X in figure A-4).
Example 1
Local IP Address:
192.168.254.254
Subnet Mask:
255.255.0.0 ( ? . ? . X . X)
Remote IP Address:
192.168.2.25
Match?:
=.=. X . X — Match
(Same subnet)
Click Start>Run.
At the Open prompt, type command.
Click the OK button.
At the DOS prompt, type ping {IP address} and then press
returns a display similar to figure A-5.
The line Pinging ... reports the actual numeric IP address, regardless of
whether you entered the actual numeric IP address or an alias name.
Tel. 07131 911201
Fax 07131 911203
Example 2
Example 3
192.168.254.254
192.168.254.254
255.255.0.0 ( ? . ? . X . X)
255.255.0.0 ( ? . ? . X . X)
190.190.2.25
192.190.2.25
≠.≠. X . X — No match
=.≠. X . X — No match
(Different subnet)
(Different subnet)
. The computer
Enter
ce-info@camboard.de
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