Installation and Connections
WebRelay Users Manual
2.6.2 Method 2: Assign a Temporary IP address to the WebRelay
This option (arping) is used to TEMPORARILY assign an IP address to the WebRelay without the need
to change the IP address of the configuration computer. The WebRelay will use this IP address as long
as power is maintained. Once power is lost and restored, the WebRelay will use the IP address
assigned in the setup page and not the temporary address assigned here. Make sure that the WebRelay
and the configuration computer are connected to the same network. Since ARP is non-routable, this will
not work through routers or gateways.
Microsoft Windows Instructions
1.
Open a Command Prompt (select START, then RUN, then type “cmd”).
Note:
For Vista, 7, 8, and 8.1,
the Command Prompt should be run as administrator (select
Start, then type “cmd” and right click on “cmd” and select “Run as administrator”).
2.
Type:
arp -s {new IP address} {serial number of the WebRelay }
Note: IP address format is xxx.xxx.xxx.xxx. The serial number can be found on a label on the
module board. The format is ss-ss-ss-ss-ss-ss.
For example, to set the WebRelay (with serial number 00-0C-C8-01-00-01 ) to 10.10.10.40 the
following command would be used:
arp -s 10.10.10.40 00-0c-c8-01-00-01
3.
Next, type:
ping -l 102 {new IP address}
For example, if the new IP address is 10.10.10.40, the following command would be used:
ping -l 102 10.10.10.40
4.
Proceed with the WebRelay setup in
Section 3
.
Once setup is complete, it may be necessary to clear the 'arp' cache to configure additional
devices. This is necessary because each unit has the same default IP address, but a different
unit serial number (MAC address). Clearing the arp table can be done by typing
arp -d
in the
command prompt window.
Linux/Unix Instructions
1.
Open a terminal and change to root user (su -, then enter root password).
2.
Type:
arp -s {new IP address} {serial number of the WebRelay }
Note: IP address format is xxx.xxx.xxx.xxx. The serial number can be found on a label on the
module board. The format is ss:ss:ss:ss:ss:ss.
For example, to set the WebRelay (with serial number 00-0C-C8-01-00-01) to 10.10.10.40 the
following command would be used:
arp -s 10.10.10.40 00:0c:c8:01:00:01
3.
Next, type:
ping -s 102 {new IP address}
For example, if the new IP address is 10.10.10.40, the following command would be used:
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