firewall blocking request

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http://www.linuxquestions.org – Hi I have the Linux firewall in that I have the following rule. $IPT -A bad_packets -p ALL -m state --state INVALID -j LOG \ --log-prefix "fp=bad_packets:1 a=DROP " $IPT -A bad_packets -p ALL -m state --state INVALID -j DROP but that rules blocking this request and I found that this request its a genuine request then why its blocking by the firewall .... Logs of firewall is here below. Jun 27 11:14:38 xyz kernel: fp=bad_packets:1 a=DROP IN=eth0 OUT=eth1 SRC= DST= LEN=40 TOS=0x00 PREC=0x00 TTL=63 ID=41102 DF PROTO=TCP SPT=55563 DPT=80 WINDOW=245 RES= (HowTos)