== Broadcast IP packets that didn't use ethernet broadcast == {{{ ether[0] & 1 == 0 and ip[16] >= 224 }}} = Non ICMP Echo-Request/Echo-Reply ICMP packets == {{{'icmp[icmptype] != icmp-echo and icmp[icmptype] != icmp-echoreply' }}} == TCP SYN packets == {{{'tcp[13] & 2 == 2'}}}[[BR]] {{{'tcp[13] == 2'}}}[BR] {{{'tcp[tcpflags] & tcp-syn != 0}}}[[BR]] == DNS Related == === Queries === {{{'port 53 and udp[10]&0x80==0x00'}}} === Responses === {{{'port 53 and udp[10]&0x80!=0x00'}}} === Successful replies (RCODE=!NoError)) === {{{'port 53 and udp[10]&0x80!=0 and udp[11]&15==0'}}} === Format Error (RCODE=!FormErr) === {{{'port 53 and udp[10]&0x80!=0 and udp[11]&15==1'}}} === Server failure (RCODE=!ServFail) === {{{'port 53 and udp[10]&0x80!=0 and udp[11]&15==2'}}} === Name Error (RCODE=NXDOMAIN) === {{{'port 53 and udp[10]&0x80!=0 and udp[11]&15==3'}}} === Not implemented (RCODE=!NotImp) === {{{'port 53 and udp[10]&0x80!=0 and udp[11]&15==4'}}} === Refused (RCODE=Refused) === {{{'port 53 and udp[10]&0x80!=0 and udp[11]&15==5'}}} === Truncated reply (requiring a resend via TCP) === {{{'port 53 and udp[10]&0x02!=0'}}}