2.drop – this drops (doesn’t allow routing for) a specific packet that has met the criteria of the corresponding filter.
3.disable – this does not apply the IP filter.
??Interface – this applies the filter to a specific interface, LAN or one of the ISDN interfaces.
??Protocol Type – this is a protocol identifier, as assigned by the Internet Assigned Numbers Authority (IANA). The values of this identifier are described in
4.protocol type = 1, this is Internet Control Message (ICMP), defined in RFC 792.
5.protocol type = 6, this is Transmission Control (TCP), defined in RFC 793.
6.protocol type = 17, this is User Datagram (UDP), defined in RFC 798.
??Src IP – this is the source address in the IP header of this packet.
??Src Netmask – this mask is
??Dst IP – this is the destination address in the IP header of the packet.
??Dst Netmask – this mask is
??Dst Port – this is the destination port, in the TCP or UDP header, of the packet.
Configuration and Management | 71 |