anti spoofing / network address

[Eddy Petrisor <eddyp-guest@userbeam.de>]

Hello,

Can you tell me something related to the $subj?

If I have an internal network that has class private IPs (172.16.), and
I am putting (in fact, firewall builder is putting it) the following
rule in the firewall, does this work for all the IPs in the subnet, or
is not working at all (trying to match that single IP)?

iptables -A INPUT -i eth1 -s 172.16.0.0/255.255.0.0 -j IRULE_0_eth1
iptables -A FORWARD -i eth1 -s 172.16.0.0/255.255.0.0 -j IRULE_0_eth1


I am a total newbie at this, so if the data is incomplete/incorrect,
please tell me so I can correct it.

Thanks,
Eddy