yes, i use iptables.. hmm.. am i forgot to open some port that used by dhcp? these are some of my default policies:
## clear all rules iptables -F iptables -X iptables -Z iptables -t filter -F iptables -t filter -X iptables -t filter -Z iptables -t nat -F iptables -t nat -X iptables -t nat -Z iptables -t mangle -F iptables -t mangle -X iptables -t mangle -Z ## default policy iptables -P FORWARD DROP #iptables -P FORWARD ACCEPT iptables -P INPUT DROP iptables -P OUTPUT ACCEPT ## allow localhost iptables -A INPUT -i lo -j ACCEPT ## allow some ports iptables -A INPUT -p TCP --dport 80 -j ACCEPT # http iptables -A INPUT -p TCP --dport 443 -j ACCEPT # https iptables -A INPUT -p TCP --dport 53 -j ACCEPT # dns iptables -A INPUT -p TCP --dport 123 -j ACCEPT # ntp iptables -A INPUT -p UDP --dport 53 -j ACCEPT # dns iptables -A INPUT -p UDP --dport 123 -j ACCEPT # ntp iptables -A INPUT -p ICMP -j ACCEPT iptables -A INPUT -p GRE -j ACCEPT #... many others forwarding policies iptables -A POSTROUTING -t nat -o $ee -j MASQUERADE echo 1 > /proc/sys/net/ipv4/ip_forward -- Regards, Kiswono P GB
