tcpdump output with iptables REJECT policy enabled
- by Pablo Santa Cruz
Hi all,
Quick question.
I have a firewall with these simple rules:
iptables -A INPUT -p tcp -s 127.0.0.1/32 --dport 6000 -j ACCEPT
iptables -A INPUT -p tcp -s 192.168.16.20/32 --dport 6000 -j ACCEPT
iptables -A INPUT -p tcp --dport 6000 -j REJECT
Now, suppose I am using TCPDUMP like this:
tcpdump port 6000
And I have host 192.168.16.21 trying to connect to port 6000.
My question is: will/should tcpdump output some packages coming from 192.168.16.21?