I have Red Hat Linux 7.3 and complie this iptables script to make this PC to a Internet gatway.
This script is running well.
# Flush all Rules
/sbin/iptables --flush
/sbin/iptables --table nat --flush
/sbin/iptables --delete-chain
/sbin/iptables --table nat --delete-cha
/sbin/iptables -N MACtest
# to block this MAC Address
/sbin/iptables -A MACtest -m mac --mac-source 00:11:22:33:44:55 -j DROP
# for transprent proxy
/sbin/iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 3128
# for MASQUREADE
/sbin/iptables --table nat --append POSTROUTING -s 192.168.0.0/24 --out-interface ppp0 -j MASQUERADE
echo "1" > /proc/sys/net/ipv4/ip_forward
I want to block a mac address, but this script is not blocking for it, any idea?
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