iptables -F root@android:/system/bin # iptables -L -n iptables -L -n Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination root@android:/system/bin # iptables -A INPUT -p tcp --sport 80 -s 61.0.0.0/8 -j DROP -sport 80 -s 61.0.0.0/8 -j DROP < protoent* getprotobyname(char const*)(3) is not implemented on Android root@android:/system/bin # iptables -L -n iptables -L -n Chain INPUT (policy ACCEPT) target prot opt source destination DROP tcp -- 61.0.0.0/8 0.0.0.0/0 tcp spt:80 Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination root@android:/system/bin # iptables -A OUTPUT -p tcp --dport 80 -s 61.0.0.0/8 -j DROP --dport 80 -s 61.0.0.0/8 -j DROP < protoent* getprotobyname(char const*)(3) is not implemented on Android root@android:/system/bin # iptables -L -n iptables -L -n Chain INPUT (policy ACCEPT) target prot opt source destination DROP tcp -- 61.0.0.0/8 0.0.0.0/0 tcp spt:80 Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination DROP tcp -- 61.0.0.0/8 0.0.0.0/0 tcp dpt:80 root@android:/system/bin #