IOCOMM - Getting Started v.104

Getting Started

Communicating with IOCOMM

Determining the Ethernet Address

Setting IP Address via Local Host (ARP jamming)

Setting IP Address via Terminal or PC

Setting IP Address via Local Host (BOOTP)

Setting IP Address Permanently

Configuration and Storage Mechanisms

The following sections show, step-by-step, how to set up and configure IOCOMM.

Communicating with IOCOMM

IOCOMM needs an Internet Protocol (IP) address. This can be assigned:

using ARP on a network host,
via a terminal or PC on port A, or
using BOOTP on a network host (Unix / Windows^® NT).

Using ARP on a local network host is the preferred method.

Determining the Ethernet Address

You will need to enter the Ethernet address of the IOCOMM if you use the ARP jamming or BOOTP procedures.

To determine the Ethernet address, either:

refer to the product label on the underside of the unit, or
use a terminal or PC attached to Port A of the IOCOMM, hold in the TEST switch, and then turn on the unit - keep the button pressed until the IOCOMM bootstrap menu appears.

Select 1.Hardware Diagnostics and then option d to display the Diagnostic monitor and then enter the command d boot. The Ethernet address will then be displayed. Press

and then q to quit the bootstrap.

Setting IP Address via Local Host (ARP jamming)

This is a simple and the recommended method to set the IOCOMM IP address. IOCOMM supports ARP which is the Address Resolution Protocol. ARP allows you to temporarily connect to the IOCOMM to assign an IP address. You will need to perform this operation before you can access the web browser configuration menus.

You must first establish connection to the IOCOMM as follows:

From a Unix host, type:
arp -s a.b.c.d aa:bb:cc:dd:ee:ff

where a.b.c.d is the IP address you want for the IOCOMM, and aa:bb:cc:dd:ee:ff is the Ethernet address of the IOCOMM (shown on the bottom of the unit).

On a Windows® system, the ARP command is a slight variation (using dashes instead of colons):

arp -s a.b.c.d aa-bb-cc-dd-ee-ff

Note: If there are any errors, re-check both the IP address and Ethernet address.
Now go to Setting IP Address Permanently.

Setting IP Address via Terminal or PC

You can also connect to the IOCOMM using a terminal (or a PC running terminal emulation).

The procedure is as follows

Ensure that power to the IOCOMM is switched off.
Connect a terminal or PC to port A on the IOCOMM rear panel.
The IOCOMM serial ports are DTE type RS-232. When connecting a terminal/PC directly, the RS-232 signals need to be crossed over (2 and 3 crossed, 7 straight through). Refer to Connectors & Cabling for pinout information.
Set the terminal to the following default settings:
9600 bps, eight data bits, one stop bit, software flow control, no parity

Note: If there are any errors, check the cable you are using (this is the most common problem).
Power-on the IOCOMM.
You are prompted to enter a login. Enter admin and press .
When prompted to enter a Password. Enter the default IOCOMM password iocomm and press .
You should see the prompt [admin:1]>>.

Note: You will need to run the admin command before getting permission to run ifconfig.
To set the IP address, enter the following command:
ifconfig quicc0 a.b.c.d and press

(where a.b.c.d is the IP address you have assigned to the IOCOMM).

Note: The IP address has now been temporarily set and turning off the power before the IP address has been permanently set via the web browser (see Setting IP Address Permanently ) will re-set the unit to factory default status with no IP address.

Netmask: At this stage, you should set the netmask if you use subnets. If the IOCOMM is installed without access to a BOOTP server, the netmask will be a default based on the IP address. This netmask may be suitable for most installations, but if the IOCOMM is installed on a subnet, it will not be possible to communicate with the IOCOMM via the network. If you need to change the netmask enter the following command:

ifconfig quicc0 netmask a.b.c.d and press .

(where a.b.c.d is the netmask value you require for the IOCOMM.
Go to Setting IP Address Permanently.

Setting IP Address via Local Host (BOOTP)

Edit the BOOTP file (bootptab under Unix) on a local network host to create a new entry for each IOCOMM you wish to install. This will enable you to connect to the IOCOMM, but you must still permanently set the IP address on the IOCOMM by using the web browser pages.
Go to the next section, to permanently set the IP address on the IOCOMM.

Setting IP Address Permanently

To set the IP address permanently on the IOCOMM:

Activate a web browser on a host on the LAN.
In the URL field, type in the IP address you have assigned to the IOCOMM- in the form: http://[IP address] and press . You will obtain the IOCOMM Administration page.
Type in the default password iocomm and select Confirm. It is recommended that you change this password after installation to maintain security of your network (see Making Changes to IOCOMM - Changing Passwords).
The IOCOMM Main menu appears.
Select Global configuration, then LAN interface.
Enter the IOCOMM's IP Address in the IP address field.
Select Submit.
Select Return to the main menu.

The IOCOMM Access Server's IP address is now permanently stored.

Configuration and Storage Mechanisms

IOCOMM has three configuration mechanisms; the Web Browser, Command Line Interface (CLI) and SNMP.

During normal start-up, configuration is read from Non-Volatile RAM.

The Web based configuration system makes immediate updates that are also stored in case of power off.

The SNMP and CLI interfaces monitor and modify the live configuration, but changes made are not stored or shown on the Web interface.

Factory reset causes the start-up configuration to be read from a fixed template and various bootstrap detected defaults rather than the permanent store.

TFTP based configuration transfers always run to and from the non-volatile configuration storage and are not acted upon until the system is rebooted.

Note: If you performed a soft factory reset (option 3.s in the Bootstrap menu), you must submit a configuration Web page in order to make the factory reset permanent.

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Links to Configuration Tasks