教師NAT 163.20.39.57
新增rdr
陳永裕 192.168.2.104 架 Linux server - www
rdr on $ext_if proto tcp from any to $ext_ip port 8880 -> 192.168.2.104 port 80
rdr on $ext_if proto tcp from any to $ext_ip port 8821 -> 192.168.2.104 port 21
rdr on $ext_if proto tcp from any to $ext_ip port 8822 -> 192.168.2.104 port 22
rdr on $ext_if proto tcp from any to $ext_ip port 8823 -> 192.168.2.104 port 23
