TCP and UDP Filters:

Filter Description Filter Expression
tcp.port == 80 Show all TCP packets with port 80 udp.port == 53 Show all UDP packets with port 53
tcp.srcport == 1234 Show all TCP packets originating from port 1234 udp.srcport == 1234 Show all UDP packets originating from port 1234
tcp.dstport == 80 Show all TCP packets sent to port 80 udp.dstport == 5353 Show all UDP packets sent to port 5353