Chapter Nine: Advanced Installations | IP filters 131 |
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7.Define the settings for the filter and click Done. The following descriptions explain the options that are available.
Source /Destination
Action Direction | Location |
AddressProtocol
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.
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| Incoming data | ||||
| DIVA | LAN ISDN Modem |
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| Network | |||
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| ISDN |
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| Ethernet |
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| FAULT POWER |
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| ISDN | ||
| B1 | B2 D LINK | E1 E2 E3 E4/C |
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DIVA LAN ISDN Modem
Outgoing data
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.
