D-Link DI-1162M User Manual

Page 71

DI-1162/DI-1162M Remote Access Router

The IP Filter parameters are described below:

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Name – This is a 12 character (maximum), alphanumeric, user-defined name, used to identify the IP filter.

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Direction – This defines the direction of the packet relative to the Interface parameter below.

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State – This is used to define the routing decision applied to the packet. The three routing decisions are

described:

1. Forward – This allows the routing of the packet, if it has met the criteria of the corresponding IP filter.

2. Drop – This drops (doesn’t allow routing for) a specific packet that has met the criteria of the

corresponding IP filter.

3. Disable – This does not apply the IP filter.

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Interface – This applies the IP filter to a specific interface, LAN or one of the WANs.

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Protocol Type – This is a protocol identifier, as assigned by the Internet Assigned Numbers Authority

(IANA). The values of this identifier are described in RFC-1700. This router supports the following:

1. protocol type = 1, this is Internet Control Message (ICMP), defined in RFC 792.

2. protocol type = 6, this is Transmission Control (TCP), defined in RFC 793.

3. protocol type = 17, this is User Datagram (UDP), defined in RFC 798.

4. protocol type = 0, this includes ICMP (1), TCP (6), and UDP (17).

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Src IP – This is the source address in the IP header of this packet.

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Src Netmask – This mask is bit-wise AND’d with the source IP address, and compared to the IP address of the

incoming interface, for which the packet arrived.

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Src Port – This is the source port in the TCP or UDP header of the packet.

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Src Port Operation – Select a source port operation: None, EQ, GT, or LT.

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Dst IP – This is the destination address in the IP header of the packet.