Eicon Networks DIVA LAN ISDN User Manual
Page 131
Chapter Nine: Advanced Installations
IP filters
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7.
Define the settings for the filter and click Done. The following descriptions explain the options that are
available.
Action
• Drop: Discard data that matches the filter definition.
• Forward: Send data that matches the filter definition to the filter output.
Direction
• incoming: Data being received by the DIVA LAN ISDN Modem on the ISDN link.
• outgoing: Data being sent by the DIVA LAN ISDN Modem on the ISDN link.
• all: Both incoming and outgoing.
Source/Destination
• from: Examine the source IP address of the datagram.
• to: Examine the destination IP address of the datagram.
Location
• the Ethernet LAN: Sets the filter to match datagrams with network addresses that are the same as
that of the DIVA LAN ISDN Modem. By default, this is 192.168.1.0. A mask of 255.255.255.0 is
used to extract the network address.
• the network: Sets the filter to match datagrams with network addresses that are the same as that the
one you specify. Choosing this option requires that you supply the IP address of a class C network in
the next box. The filter uses a mask of 255.255.255.0 to extract the network address (class C network
mask).
• host: Sets the filter to match datagrams with IP addresses that are the same as the one you specify.
Choosing this option requires that you supply the IP address of the host computer in the next box.
The filter uses a mask of 255.255.255.255.
• anywhere: Sets the filter to ignore the source and destination address in the datagram.
Address
Only applies if you select the network or the host for location.
Protocol
IP datagrams can carry a wide variety of protocol traffic. The DIVA LAN ISDN Modem lets you filter the
many of the most popular protocols. The following descriptions explain some of the options that are
available.
• any: Applies the filter to any datagram.
Action
Direction
Source /Destination
Location
Protocol
Address
DIVA LAN ISDN Modem
Incoming data
Outgoing data
FAULT POWER
DIVA LAN ISDN Modem
ISDN
E4/C
E1
E2
E3
LINK
Ethernet
B1
B2
D
Network
ISDN