User manual

Chapter Three Operation
Page 41 March 2010
Delete Entries Check the delete box alongside entries selected for removal from the
list. Alternatively, check the enable box alongside entries if you want
to make the rule active.
Whitelist or Blacklist Check the box to make the list a whitelist. This will only allow
traffic described in the list to be sent over the radio link. All other
traffic is blocked unless it is present in a MAC whitelist.
Uncheck the box to make the list a blacklist. This will ban all traffic
described in the list from being sent to the module or over the radio
link.
Apply Changes Update settings.
Apply Changes and Save Update settings and save to non-volatile memory.
NOTE: When configuring a TCP filter it is often desirable to also configure both an ARP and an
ICMP filter for the same IP Address range. The ARP filter is required whenever the sending
device does not have a fixed IP to MAC Address translation table entry (i.e. whenever the device
may need to send an ARP request to determine the MAC address of a device with a known IP
Address). An ICMP filter is needed to allow/disallow “pings”.
3.13 Serial Port Configuration
The WI-MOD-9-E has an RS-232, and RS-485 port for serial communications. These ports may
be used for different purposes. The WI-MOD-9-E offers three different serial functions which
are PPP server, Serial Gateway, and ModBus TCP to RTU server.
3.12.1 RS-232 PPP Server
The WI-MOD-9-E can be used as a PPP Server to connect the wireless Ethernet system to serial
devices via the RS232 or RS485 serial ports.
PPP Server enables a network connection to the WI-MOD-9-E over a serial cable. This is much
like dial up internet. The maximum serial data rate is 38.4Kb/s. Hardware or Software flow
control may be selected.
With minimal configuration on the PC, you may use Dial up networking in Windows XP to
connect to the network via the serial port.
For the WI-MOD-9-E, users must configure the local IP address for the WI-MOD-9-E and the
remote device IP address. Some care must be taken in selecting these IP addresses.
If you wish to use routing over this serial network connection, then the IP addresses selected
must not lie on Wireless or Wired Ethernet networks already configured into the device. You
must ensure they set routing rules appropriately for devices either side of the network.