![]() If the printer is poorly managed a web interface might be exposed to HTTP (opposed to HTTPS).For FTP and SMB I would look at the banner presented during session setup. These packets can include further details. Printers might support more protocols, which are not directly related to printing.These packets might include more information. They either broadcast their presence to the network or respond to queries from another system. Many networks printers support the Simple Service Discovery Protocol (SSDP) protocol.In rare circumstances the SNMP packets might reveal further information like manufacturer, model number or SW version. Some printer drivers use the SNMP protocol to poll status information, like available paper, ink or toner.If you record traffic in the same network segment as the printer (say a SOHO network where printer and computer reside side by side) you can identify the manufacturer from the printers MAC address.Under certain, very specific circumstances, you might have a chance to find some information about the printer in a trace file: Since there is no fixed field in a network protocol there is no feature in Wireshark to identify the model. In general, a printer's model number is rarely broadcasted over the network. ![]()
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