Changing the Web Server TCP Port Number
The configuration interface supports the following browsers:
Each web page features action buttons which execute entries or provide navigation. Not all action buttons appear on all of the pages; they are only present when they can perform a particular task related to the current page.
The action buttons featured are:
and 
The exact appearance of the configuration pages will vary slightly between workstations. All web browsers are user configurable and allow changes to font type and size, display parameters, etc. Changes to these settings will cause IOCOMM web pages to display differently.
For example, if you set the typeface on your browser to a very small size, the bold IOCOMM key field names may not appear on-screen as bold type.
Access to IOCOMM configuration is password protected.
IOCOMM is shipped with the factory default password set to iocomm. The password should be changed as soon as possible. See also Time-out Function, below.
Note: The Administration password must be a minimum of 4 characters. If a password is too long, it will be truncated to 40 characters.
All other passwords which can be entered on the IOCOMM web pages, have no minimum number of characters (can be null if required) but will be truncated to 40 characters.
As a security measure, the IOCOMM Web browser pages feature a time-out function. If a browser page has been open for approximately 15 minutes without an action button being used, the current session / user is terminated. The IOCOMM administration password must be re-entered before work can continue.
The IOCOMM URL may be added to your bookmark list to save typing in the address every time you access the IOCOMM web browser pages.
If a second user / administrator has been issued with the browser password and tries to log on to the system whilst it is already in use, a warning message will be displayed to this effect. If the second user continues, enters the password and confirms it, the current user will be locked out until the administration password is re-entered.
IOCOMM web pages use text input fields to enable the unit to be set up and configured. Text input fields (other than those detailed separately in this section) are restricted to a maximum of 100 characters.
Certain IOCOMM web pages contain a text entry field which is known as a key field. This means that the text entered in the field must be unique to that particular entry. The key fields are identified on the web pages by the name of the field being shown in bold text. A key field will usually be the first text field on the relevant page.
Key fields are used on the following IOCOMM web pages:
Page
Sub-page
Field name
SNMP
IP Address
Domain Name Service
Host table
Host name
Local authentication
User I.D.
LPD Printer groups
Printer Group Name
Outbound services configuration
Service Name
Remote sites configuration
Remote Host name
Note: Text entered in key fields is case sensitive. If you create an entry in a key field with the text England, you would also be able to create an additional and separate entry with the text england.
Text entered in key fields may be up to 62 characters long and is limited to a specified range of allowable characters. These are:
Most of the sections in this guide provide detailed information on performing specific tasks (each section provides a step-by-step guide to set-up and configuration operations).
The most commonly used TCP port number for web page services (httpd) is 80.
This number is the default for the IOCOMM and should be able to be used with
no problems. If you wish to change the port number, this can be done through
the IOCOMM HTTPD page.
To change the port number:
The page will display the current web port number in the selection box:
IOCOMM Web server port [80 ]
Note: If you change the web server port number, you will need to add the new port number to the IOCOMM URL each time you access the unit. For example, if you change the web server port number to 8000:
IOCOMM Web server port [8000 ]
You must enter a new URL in the form: http://[IOCOMM address]:8000.
The IOCOMM needs an IP address to communicate with and obtain services from other machines on local or remote networks. The IP address should have already been set, but if you wish to change it:
Note: This address must be set to a value that is consistent with the network the IOCOMM is on.
You should also ensure that any relevant entries on DNS servers are updated.
If you do not enter a netmask, the IOCOMM will itself calculate and provide a default netmask. If you wish to change the netmask for any reason proceed as follows:
The DNS host name for the IOCOMM can be entered through the web browser pages. Note that this procedure only allows you to enter the name for administration purposes; it does not set up the DNS profiles for the network. This must be done as a separate operation on the network's DNS server. Enter the DNS host name as follows:
Both option a and option b return you to the Global configuration page.
Note: The name entered here should be the name which has been set up on the DNS server(s) for this device.
If you wish to offer floating IP addresses to the PPP dial-in calls, set up an IP address pool:
Start IP address [ ]
End IP address [ ]
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Getting Started | Web Access | First Time Configuration Tour | Configuring DNS on IOCOMM | Changing Serial Line Configuration | Resetting a Serial Port | Using a Modem for Dial-in Operation | Outgoing Services | Disabling Incoming Calls by Port | Adding a Terminal | Configuring the Synchronous Port (B) | Printing | Configuring RADIUS | Local Authentication | Dynamic Routing (RIP) | Enabling TCP Security | Global Messages | Configuring Status Logging | Telnet Service (telnetd) | Monitoring Status | Making Changes to IOCOMM