netfilter-bounces@xxxxxxxxxxxxxxxxxxx <> scribbled on Thursday, 28 April 2005 16:48: > Thankyou for the reply. > > This was the log from one of my client who was attacked from a client > on other subnet. > > My network consist of clients from different subnets of /24. > > The attacks from one subnet travels through my linux router > and hits the client on other subnet. > > I tried few rules as below but seems not to be working. The script doesn't block any packets from 192.168.25.208. If 192.168.25.208 isn't allowed passing your router, you should block it : $IPT -A FORWARD -s 192.168.25.208 [-d <destination_ip>] \ -j [DROP|REJECT --reject-with-tcp-reset] Or something like that. The real solution is like Jason said : track down the person at 192.168.25.208 and kick his/her ass ! Gr, Rob