Block and allow with Iptables help!

conrado · 10-25-2007, 05:43 PM

I have a router running in slackware 11.0 I need to block all my local network so they can't access internet, I know I can use:

iptables -I INPUT 192.168.0.0/24 -j DROP

this works Ok, but I want to allow access to internet to:

192.168.0.45
192.168.0.37

They are inside the IP range of 192.168.0.0/24 how do I allow these 2 local IP to connect to internet, whitout allowing the rest of my LAN to also connect.

conrado · 10-26-2007, 09:51 AM

I find a solution for this

Since this rule block all IP for a entire range

iptables -s 192.168.1.0/24 -j DROP

I just add the IP I didn't want to block

iptables -s 192.168.1.30 -j ACCEPT

This solved my issue, but thanks

archtoad6 · 10-26-2007, 10:31 AM

Thanks for taking the time to post the solution. Not only did you save us from writing the answer, but you also added another solution to the LQ archive.