On Thu, Jun 13, 2019 at 10:06:30AM +0100, BELAHCENE Abdelkader wrote: > Hi, > I am using one machine, say SERV, as a gateway ( cards eth0, eth1) from > network1 to network2, I want to forward all packets but tcp port 80 so > I used > *sysctl -w net.ipv4.ip_forward=1*
This just enables the forward mechanism in the kernel > > *I want to drop port 80, and accept others port* > > *I tryed* > > *iptables -A FORWARD -i eth1 -o eth0 -p tcp --dport 80 -j DROP* It doesn't forward anything. Are these all rules you have? Please post the output of iptables -L Also are network1 and network2 routable? Or do you try a NAT setup? > > *but not ran* what does that even mean? Does that mean it was not working? Technically it does, it just doesn't do what you want it to do. > > *Thanks for help* > *regards* and your "*" key is stuck ;) -H -- Henning Follmann | hfollm...@itcfollmann.com