:INPUT,FORWARD,OUTPUT -p dccp -m dccp --sport 1;=;OK -p dccp -m dccp --sport 65535;=;OK -p dccp -m dccp --dport 1;=;OK -p dccp -m dccp --dport 65535;=;OK -p dccp -m dccp --sport 1:1023;=;OK -p dccp -m dccp --sport 1024:65535;=;OK -p dccp -m dccp --sport 1024:;-p dccp -m dccp --sport 1024:65535;OK -p dccp -m dccp ! --sport 1;=;OK -p dccp -m dccp ! --sport 65535;=;OK -p dccp -m dccp ! --dport 1;=;OK -p dccp -m dccp ! --dport 65535;=;OK -p dccp -m dccp --sport 1 --dport 65535;=;OK -p dccp -m dccp --sport 65535 --dport 1;=;OK -p dccp -m dccp ! --sport 1 --dport 65535;=;OK -p dccp -m dccp ! --sport 65535 --dport 1;=;OK # ERROR: should fail: iptables -A INPUT -p dccp -m dccp --sport 65536 # -p dccp -m dccp --sport 65536;;FAIL -p dccp -m dccp --sport -1;;FAIL -p dccp -m dccp --dport -1;;FAIL -p dccp -m dccp --dccp-types REQUEST,RESPONSE,DATA,ACK,DATAACK,CLOSEREQ,CLOSE,RESET,SYNC,SYNCACK,INVALID;=;OK -p dccp -m dccp ! --dccp-types REQUEST,RESPONSE,DATA,ACK,DATAACK,CLOSEREQ,CLOSE,RESET,SYNC,SYNCACK,INVALID;=;OK # DCCP option 0 is valid, see http://tools.ietf.org/html/rfc4340#page-29 # ERROR: cannot load: iptables -A INPUT -p dccp -m dccp --dccp-option 0 #-p dccp -m dccp --dccp-option 0;=;OK -p dccp -m dccp --dccp-option 255;=;OK -p dccp -m dccp --dccp-option 256;;FAIL -p dccp -m dccp --dccp-option -1;;FAIL # should we accept this below? -p dccp -m dccp;=;OK