Beginer Question about iptables, Networking
Hello Forum Users,
I would ask for help about my Net-Infrasructur.
My destination is to get up and running a Intrusion Prevention System (Snort) in a Virtual Machine. This I installed succesfully . But in the Infrastructur I would do a step before, for understanding.
Now I have a PC (PC1) between my Internet Router and my internal Network (with a Cross Over Connection).
I managed it to ping from my internal Network across my PC1, where is a bridge with eth0 and eth1, to my Internet Router.
Now I have respect to do the next step, because my iptables are full with any default rules.
In my understanding, for other Net- Traffic (not ICMP) across PC1, I need a iptables rule?
In example: iptables -A FORWARD -i br3 -j ACCEPT
Is this right?