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franl
2014 Jul 16
0
[Bug 966] New: iptables can't change or drop or any effect on scapy packet!
...edTo: netfilter-buglog at lists.netfilter.org
ReportedBy: persianjambon at yahoo.com
Estimated Hours: 0.0
this is my commnad:
iptables -I OUTPUT -p udp -m udp --dport 53 -j DROP
and i create and send scapy packet:
sr1(IP(dst="4.2.2.4")/UDP()/DNS(rd=1,qd=DNSQR(qname="iranled.com")))
but iptable not DROP this packet!!!
OR:
this rule:
iptables -t nat -A OUTPUT -p udp -m udp --dport 53 -j DNAT --to-destination
8.8.8.8
and all scapy pcket hoing to 4.2.2.4
tcpdump output:
04:43:00.442453 IP 192.168.1.2.53 > 4.2.2.4.53: UDP, length 29
04:43:00.855930 IP 4.2....