"Ethernet address 00:08:15:00:08:15" eth.addr == 00:08:15:00:08:15 "Ethernet type 0x0806 (ARP)" eth.type == 0x0806 "Ethernet broadcast" eth.addr == ff:ff:ff:ff:ff:ff "No ARP" not arp "IP only" ip "IP address 192.168.0.1" ip.addr == 192.168.0.1 "IP address isn't 192.168.0.1, don't use != for this!" !(ip.addr == 192.168.0.1) "IPX only" ipx "TCP only" tcp "UDP only" udp "UDP port isn't 53 (not DNS), don't use != for this!" !(tcp.port == 53) "TCP or UDP port is 80 (HTTP)" tcp.port == 80 || udp.port == 80 "HTTP" http "No ARP and no DNS" not arp and !(udp.port == 53) "Non-HTTP and non-SMTP to/from 192.168.0.1" not (tcp.port == 80) and not (tcp.port == 25) and ip.addr == 192.168.0.1