Best way to determine type of received packet

[vanikcz]

Dear PCAP.NET team,
can you help me with a best way to determine a packet type? For example, if I have capture filter like that (tcp port 80) or (udp port 53).
How can I safely determine a type of packet? Sorry for maybe dumb question, but Im unable to find the answer in other ways...

Best regards
Jan

[Boaz Brickner]

Hi Jan,

Please use the Pcap.Net Q&A group.

Boaz.