IPTables not working?

[maze at cela.pl (Maciej Żenczykowski)]

>  iptables -I RH-Firewall-1-INPUT -s 195.225.176.0/24 -j DROP

I think you mean:
   iptables -I RH-Firewall-1-INPUT 1 -s 195.225.176.0/24 -j DROP

>
> instead and see what that does.  That's replacing '-A', which appends the 
> rule to the END of the chain, with '-I', which inserts the rule at the HEAD 
> of the chain.
>