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Diff: Subnet

--- Version 4 
+++ Version 5 
@@ -1,3 +1,6 @@ 
+### Index ### 
+!! Explanation 
 '''A Subnet is a subdivision of a [TCPIP TCP/IP] network.''' 
 
 Subnets can be large or small, but generally, smaller subnets make for more efficient [Routing]. 
@@ -31,7 +34,17 @@ 
 192.168.70.32 would be your Network Address 
 192.168.70.47 would be your Broadcast Address 
 
+!! Calculators 
 These numbers were calculated using the online subnet calculator at (http://www.telusplanet.net/public/sparkman/netcalc.htm http://www.telusplanet.net/public/sparkman/netcalc.htm). 
 There are also various free subnet calculators for Windows and Linux downloadable from the net.  (http://www.google.com.au Google) will find them for you. 
 
+If you run the (http://www.shorewall.net/ Shorewall firewall) available for Linux then an ipcalc command has been available since version 1.4.6 
+      '''ipcalc [
|
/ ]''' 
+Example: 
+      root@wookie:# shorewall ipcalc 10.10.144.48/28 
+        CIDR=10.10.144.48/28 
+        NETMASK=255.255.255.240 
+        NETWORK=10.10.144.48 
+        BROADCAST=10.10.144.63 
+!! Melbourne Wireless Subnets 
 From [LocFinder], '''Melbourne Wireless''' nodes are allocated subnets from the 10.10.0.0/16 address range.  Upon request, individual nodes are given '''/28''' subnets giving them 14 usable addresses per subnet.  In the near future, nodes may request smaller subnets if they wish. 
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