This will only show packets containing the selected IP address. This can be either the source or the destination IP:
ip.addr ==x.x.x.x
This will show the communication between two IP addresses, which can be from the direction of the source or the destination:
ip.addr ==x.x.x.x && ip.addr ==x.x.x.x
You could also just type in the name of the protocol that you want to see:
http or dns
This filter will only show the TCP packets that are passing through the specified port number:
tcp.port==xxx
You may further specify the details of this filtering option to narrow your search of the TCP packets:
tcp.flags.reset==1
To identify certain types of web traffic, such as requests that are being made to certain websites on the network, enter the following:
http.request
Put an exclamation in front followed by the initial parentheses:
!(arp or icmp or dns)
tcp contains searches for exact...