User manual

64 www.cooperbussmann.com/wirelessresources
Cooper Bussmann 245U-E Wireless Ethernet Modem & Device Server User Manual
Rev Version 2.19
Select “Blacklist” or
“Whitelist”
Blacklist will prevent all listed devices from accessing the module and using the radio
link. Whitelist will allow devices with the IP addresses listed to communicate with the
module and utilize the radio link. All other devices are blocked.
Add Entry Add a row to the table of IP address filter rules.
Delete Entry Delete the currently selected IP address filter rule.
Enable Select this checkbox to enable the rule.
IP Address Min, IP
Address Max
These set the range of IP addresses. All addresses within the specified range are
affected by the rule.
Port Min,
Port Max
When the protocol is set to TCP or UDP, this is the range of port addresses to which
the rule applies. When the protocol is set to All or ICMP, these settings have no
effect.
Protocol This chooses the protocol to which the rule applies. The rule can apply to Any
protocol (All), or to only one of TCP, UDP, or ICMP (Ping).
Save Changes Save changes to non-volatile memory (reset is required to activate).
Save Changes and
Reset
Save to non-volatile memory and restart to activate changes.
ARP Filter Configuration
Address Resolution Protocol (ARP) is a broadcast message and is primarily used for finding a MAC address when
only the IP or some other Network Layer address is known. On large networks, you tend to get a high proportion
of broadcast messages. Using ARP filters is useful for reducing broadcast traffic on the wireless network by only
allowing ARP requests for known units to pass, or by blocking ARP requests for high use addresses.
Select “Blacklist” or
“Whitelist”
A blacklist will block ARP requests that match the entry. A whitelist will allow only
ARP requests that match the entry. All other devices are blocked.
Add Entry Add a row to the table of ARP address filter rules.
Delete Entry Delete the currently selected ARP address filter rule.
Enable Select this checkbox to enable the rule.
IP Address This sets the IP address that you wish to filter.
IP Netmask Sets the IP netmask.
Save Changes Save changes to non-volatile memory (reset is required to activate).
Save Changes and
Reset
Save to non-volatile memory and restart to activate changes.
3.20 DHCP Client Configuration
Dynamic Host Configuration Protocol (DHCP) allows DHCP clients to automatically obtain their IP address at
startup. This simplifies network administration because there is no need to manually configure each device with a
separate IP address. The 245U-E is able to act as a DHCP client. To set the 245U-E to acquire its IP address from
a DHCP server, select the option “Obtain IP Address Automatically” on the Network Configuration page.
When configured as a DHCP client the “Device Name” on the Module Information page will be the module identifier
(as the IP address will be unknown) and so should be given a unique name.