User guide

IOLAN+, IOLAN+ Rack & IOLAN+ 102/104 User guide
Communicating via ARP
Page 39
Chapter 2 Installation
Communicating via ARP
IOLAN+ supports the ‘Address Resolution Protocol’ (ARP). It allows you to temporarily
connect to your IOLAN+ to assign a permanent IP address. If you prefer to use a terminal or
PC attached to IOLAN+, skip to the next section.
To do this proceed as follows;
1. From a local Unix host, type the following:
arp -s a.b.c.d aa:bb:cc:dd:ee:ff
(where a.b.c.d is the IP address you want for IOLAN+, and aa:bb:cc:dd:ee:ff is the
Ethernet address of IOLAN+, found on the bottom of the unit itself).
2. On a Windows ® NT/98 system, the arp command is slightly different (using dashes
instead of colons):
arp -s a.b.c.d aa-bb-cc-dd-ee-ff
3. Whether you use Unix or Windows ® to run arp, you are now ready to telnet to IOLAN+.
Here is the sequence to use:
arp -s 192.168.209.8 00:80:d4:00:33:4e
telnet 192.168.209.8
password>
local>
4. At the password prompt, press the Enter key since this is not set yet. The IP address still
needs to be configured on the unit (ARP has only allowed you to connect to the unit so
far).
You can now skip the next section and go straight to The Menu System on page 41
Note
If there are any errors, recheck both the IP and Ethernet addresses you
keyed in (this is the most common error here). See Appendix D
Troubleshooting for more information on problems.