805U-E Wireless Ethernet
User Manual
Man_805U-E Rev 1.5
Page 38
IP Address Filter Configuration:
Add Entries
Enter the details of IP traffic to be added to the list. Protocols ARP,
ICMP, TCP and UDP may be selected. Other IP protocols may be
selected provided the IP protocol number within packets is known.
TCP and UDP traffic may be also limited to specific port numbers.
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”.
