ip 클래스별 iptables 차단설정

 

C클래스
To block 116.10.191.* addresses:

# iptables -A INPUT -s 116.10.191.0/24 -j DROP

B클래스
To block 116.10.*.* addresses:

# iptables -A INPUT -s 116.10.0.0/16 -j DROP 

A클래스
To block 116.*.*.* addresses:

# iptables -A INPUT -s 116.0.0.0/8 -j DROP