![]() If you want to filter out all packets containing IP datagrams to or from IP address 1.2.3.4, then the correct filter is !(ip.addr = 1.2.3.4) as it reads “show me all the packets for which it is not true that a field named ip.addr exists with a value of 1.2.3.4”, or in other words, “filter out all packets for which there are no occurrences of a field named ip.addr with the value 1.2.3.4”. To see all packets that contain a Token. As an IP datagram contains both a source and a destination address, the expression will evaluate to true whenever at least one of the two addresses differs from 1.2.3.4. If you want to see all packets which contain the IP protocol, the filter would be ip (without the quotation marks). The reason for this, is that the expression ip.addr != 1.2.3.4 must be read as “the packet contains a field named ip.addr with a value different from 1.2.3.4”. In the packet detail, opens all tree items. Instead, that expression will even be true for packets where either source or destination IP address equals 1.2.3.4. (Ideally, the Wireshark display filter validation could be improved to detect this and turn the expression red instead of green.) ip.address 153.11.105.34 or 153.11.105. Move to the next packet, even if the packet list isn’t focused. Unfortunately, this does not do the expected. Also, since you're attempting to use the resolved Ethernet address (with the OUI ), then you'll actually need to use eth.srcresolved'CompalIndc:d9:3e', since eth.src is for unresolved MAC addresses. Then they use ip.addr != 1.2.3.4 to see all packets not containing the IP address 1.2.3.4 in it. That is an Ethernet MAC address, not an IP address, so you filter it with eth.src, not ip.src. ![]() Often people use a filter string to display something like ip.addr = 1.2.3.4 which will display all packets containing the IP address 1.2.3.4. Using the != operator on combined expressions like eth.addr, ip.addr, tcp.port, and udp.port will probably not work as expected. Wireshark allows you to string together single ranges in a comma separated list to form compound ranges as shown above.
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