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Appendix D IR-IP Interface Module Installation and Operation Manual

D-8 Performing Preliminary Configuration ASM-40 Ver. 1.0

The IP learning mechanism enables IR-IP to learn its LAN interface IP address by

receiving frames sent by a

ping

utility to the prescribed LAN IP address.

To use the IP learning mechanism, you do not need to know the current address

of IR-IP LAN interface, but only the prescribed IP address.

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-40 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-40 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.

Note

1 2 ... 75 76 77 78 79 80 81 82 83 84 85 ... 115 116

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