If you’re interested in packets coming from a particular IP address, type this into the filter bar: “ ip.How Do I Filter Wireshark by IP Address and Port? How do I filter Wireshark by IP address and port? Only the Internet Service Provider (ISP) can provide an exact physical address of an IP. At best, you’ll get the exact city in which the user of the IP is located. No Internet Protocol (IP) address database can provide the exact physical address of an IP address location. See also Do Black Sharks Exist? How can I look up an IP address? IPV4 header format is of 20 to 60 bytes in length, contains information essential to routing and delivery, consist of 13 fields, VER, HLEN, service type, total length, identification, flags, fragmentation offset, time to live, protocol, header checksum, source IP address, Destination IP address and option + padding, If someone uses a proxy you can often see a “X-Forwarded-For” header that tells you for which original IP address the request was processed by the proxy. You just need to open the HTTP section in the decode pane to see them all. Wireshark captures full packets by default, so all HTTP headers are included anyway. This simple 16-bit field is displayed in Hex and has a few different uses, most importantly: Identifies fragmented packets. There are many different fields in the various headers we get to examine during packet analysis, one of the most overlooked field is the IP Identification field. See also How Do You Clean A Horse Mackerel? What is IP ID in Wireshark?

Diplaying wireshark ip v4 only