506電腦教室學生座位與IP分配表 　
IP 座位 IP 座位 IP 座位 IP 座位
192.168.1.180 30 192.168.1.118 20 192.168.1.200 10
192.168.1.172 29 192.168.1.104 19 192.168.1.195 9
192.168.1.199 28 192.168.1.143 18 192.168.1.131 8
192.168.1.103 37 192.168.1.163 27 192.168.1.189 17 192.168.1.156 7
192.168.1.109 36 192.168.1.153 26 192.168.1.174 16 192.168.1.154 6
192.168.1.125 35 192.168.1.108 25 192.168.1.133 15 192.168.1.121 5
192.168.1.184 34 192.168.1.100 24 192.168.1.162 14 192.168.1.164 4
192.168.1.132 33 192.168.1.112 23 192.168.1.194 13 192.168.1.135 3
192.168.1.146 32 192.168.1.134 22 192.168.1.124 12 192.168.1.181 2
192.168.1.105 31 192.168.1.119 21 192.168.1.171 11 192.168.1.174 1

192.168.1.100 0 ms S506-032
192.168.1.104 0 ms S506-05
192.168.1.105 0 ms S506-013
192.168.1.108 0 ms S506-016
192.168.1.112 0 ms S506-020
192.168.1.118 0 ms S506-026
192.168.1.119 0 ms S506-010
192.168.1.121 0 ms S506-025
192.168.1.124 0 ms S506-017
192.168.1.125 0 ms S506-04
192.168.1.131 0 ms S506-09
192.168.1.132 0 ms S506-029
192.168.1.134 0 ms S506-012
192.168.1.135 0 ms S506-030
192.168.1.143 0 ms S506-018
192.168.1.146 0 ms S506-019
192.168.1.153 0 ms S506-015
192.168.1.154 0 ms S506-02
192.168.1.156 0 ms S506-031
192.168.1.159 0 ms S506-024
192.168.1.162 0 ms S506-033
192.168.1.163 0 ms S506-023
192.168.1.164 0 ms S506-022
192.168.1.171 0 ms S506-07
192.168.1.172 0 ms S506-027
192.168.1.174 0 ms S506-01
192.168.1.180 0 ms S506-011
192.168.1.181 0 ms S506-08
192.168.1.184 0 ms S506-05
192.168.1.189 0 ms S506-06
192.168.1.194 0 ms S506-014
192.168.1.195 0 ms S506-021
192.168.1.199 0 ms S506-03
192.168.1.200 0 ms S506-028

簡要防火牆設定，限定教室內電腦可以上網，其餘自行帶來的筆電或其他設備不可上網。　

iptables -A FORWARD -s 192.168.1.100 -j ACCEPT
iptables -A FORWARD -s 192.168.1.104 -j ACCEPT
iptables -A FORWARD -s 192.168.1.105 -j ACCEPT
iptables -A FORWARD -s 192.168.1.108 -j ACCEPT
iptables -A FORWARD -s 192.168.1.112 -j ACCEPT
iptables -A FORWARD -s 192.168.1.118 -j ACCEPT
iptables -A FORWARD -s 192.168.1.119 -j ACCEPT
iptables -A FORWARD -s 192.168.1.121 -j ACCEPT
iptables -A FORWARD -s 192.168.1.124 -j ACCEPT
iptables -A FORWARD -s 192.168.1.125 -j ACCEPT
iptables -A FORWARD -s 192.168.1.131 -j ACCEPT
iptables -A FORWARD -s 192.168.1.132 -j ACCEPT
iptables -A FORWARD -s 192.168.1.134 -j ACCEPT
iptables -A FORWARD -s 192.168.1.135 -j ACCEPT
iptables -A FORWARD -s 192.168.1.143 -j ACCEPT
iptables -A FORWARD -s 192.168.1.146 -j ACCEPT
iptables -A FORWARD -s 192.168.1.153 -j ACCEPT
iptables -A FORWARD -s 192.168.1.154 -j ACCEPT
iptables -A FORWARD -s 192.168.1.156 -j ACCEPT
iptables -A FORWARD -s 192.168.1.159 -j ACCEPT
iptables -A FORWARD -s 192.168.1.162 -j ACCEPT
iptables -A FORWARD -s 192.168.1.163 -j ACCEPT
iptables -A FORWARD -s 192.168.1.164 -j ACCEPT
iptables -A FORWARD -s 192.168.1.171 -j ACCEPT
iptables -A FORWARD -s 192.168.1.172 -j ACCEPT
iptables -A FORWARD -s 192.168.1.174 -j ACCEPT
iptables -A FORWARD -s 192.168.1.177 -j ACCEPT
iptables -A FORWARD -s 192.168.1.180 -j ACCEPT
iptables -A FORWARD -s 192.168.1.181 -j ACCEPT
iptables -A FORWARD -s 192.168.1.184 -j ACCEPT
iptables -A FORWARD -s 192.168.1.189 -j ACCEPT
iptables -A FORWARD -s 192.168.1.194 -j ACCEPT
iptables -A FORWARD -s 192.168.1.195 -j ACCEPT
iptables -A FORWARD -s 192.168.1.199 -j ACCEPT
iptables -A FORWARD -s 192.168.1.200 -j ACCEPT
iptables -A FORWARD -s 192.168.1.1/24 -j DROP