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ASM-60 Installation and Operation Manual Appendix C IR-IP Interface Module
Performing Preliminary Configuration C-7
The IP address is actually retrieved from the ARP frames sent during pinging to
locate the ping destination, not from the ping frames.
To ensure that the process is correctly performed, it is recommended to check the
contents of the ARP table before starting the ping utility, to make sure that it does
not contain the address to be assigned to the IP router LAN interface.
To view and edit the ARP table contents:
If the Telnet host you are using runs under Microsoft Inc. Windows™ 95, 98 or
NT, use the following procedure to view and edit the ARP table contents:
1. Display the table using the
arp -a
command.
2. If the table includes the intended IP address, remove it from the table using
the
arp -d
command.
If for some reason the IP learning process does not succeed, before repeating it
make sure to remove the IP address from the table.
Assigning a LAN IP Address to a New IR-IP
The following procedure enables you to configure the LAN IP address of a new
IR-IP router, i.e., a router using the default parameters (see the Accessing the IR-IP
Management Subsystem section above).
If ASM-60 is already operating, skip Step 2 in the following procedure.
To configure the IP router LAN address:
1. Make sure the preparations described above have been completed, including
the configuration of the ping utility.
2. Turn ASM-60 on and monitor the IP router indicators:
The INT indicator turns on
The ERR indicator lights steadily for approx. 15 seconds, and then starts
flashing at a rapid rate (about three times per second).
If the ERR indicator turns off, skip to the What to Do If ... section below.
3. Set section 1 of IR-IP DIP switch to ON.
The ERR indicator starts flashing faster (approximately four times a second).
4. Send a ping to the new address to be used by IR-IP. A confirmation should be
received after the third ping: after the confirmation, the flashing will slow
down to approximately twice a second.
If your host does not begin to receive ping replies after three unsuccessful
attempts, skip to the What to Do If ... section below.
5. Return section 1 of the IR-IP DIP switch to the OFF position.
The ERR indicator must turn off.
At this stage, the communication with IR-IP router is lost, because its IP address
has been changed. Therefore, you must reconfigure the destination IP address of
the Telnet host. If you wish, you may also change the temporary IP address
assigned to the host (192.168.205.2) back to its permanent address.