I-MO 520 Series Product Installation Manual - page 15
INSTALLATION MANUAL FOR THE EMS I-MO 540 SERIES APPLIANCE
Version
1.2
ELECTRONIC MEDIA SERVICES LIMITED
PASSFIELD BUSINESS CENTRE, LYNCHBOROUGH ROAD, LIPHOOK, HAMPSHIRE, GU30 7SB, UK
Tel: 01428 751655 | Fax: 01428 751654 | E-mail: imo@ems-uk.com
Page
15
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General Tab
The host name of the i-MO appliance can be set on the "General" tab.
It must be RFC952 compliant. The host name can be up to 24 characters long and consist of letters (a-z),
numbers 0-9), minus sign (-), and period (.). The periods are normally used to delimit components of a
"domain style" name (See RFC-921). It must not contain blank or space characters. The host name is case
insensitive and letters may be upper or lower case. The first character must be a letter.
Valid examples:
i-mo.1234.mydomain.com
my-imo
Interfaces Tab (Image 1)
The i-MO 310 and 540 appliances have 6 Gb Ethernet ports plus an optional wireless 802.11 b/g/n wireless
interface. The GbE interfaces are named eth0 through eth5 and the wireless interface is named wlan0.
All of the physical devices can be individually configured and can be assigned to internal, dmz, or external
zones in the firewall.
One or more physical interfaces can be combined into a single logical interface (br0). The logical interface is
like an Ethernet switch and MAC address to physical port mappings are typically remembered for up to 5
minutes before traffic for a given address is broadcast to all ports again.
The IP address of the interfaces should be specified using a CIDR which is a representation of an IP address
and its associated routing prefix, for example: 192.168.0.1/24 or 10.0.0.1/16
In the following example the firewall is enabled and all the Ethernet ports (0-5) plus the WiFi interface
(wlan0) are assigned to the bridge interface (br0).
The bridge interface is assigned to the “internal” zone and the IP address is set to 192.168.0.111 and the
DHCP server is enabled and will issue IP address from the range 192.168.0.100 to 192.168.0.200 inclusive.
The additional DHCP options for the DNS and WINS servers and the DNS search domain can be set in the
DHCP setting.
In the wlan0 section you can specify the “service set identifier “ (SSID) or name that will be broadcast. The
SSID may be up to 31 characters long and can contain upper and lowercase letters (A-Z, a-z) or numbers (0-
9). It may also include any punctuation except the following: ", $, [, \, ], and +, it cannot start with a !, # or ;
character. For example:
my-wifi