GNS3 and SDM

mailsent/ December 3, 2011/ Technical Notes, Uncategorized

GNS3 stands for Graphic Network Simulator and can be used to simulate Cisco routers.  I first came across this when I want to try out Cisco SDM and could not do this in Packet Trace. The Cisco SDM is a web base management for Cisco device which take the command line away and provides a GUI for administrators. or the

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Network Notes Addresses

mailsent/ August 20, 2011/ Uncategorized

Just some metal notes about Network address for reference. IP v4 makeup 32 bit address system 0.0.0.0 through to 255.255.255.255 0 to 255 is 8 bit wide and forms an octet. ` RFC 1918 class A 10.0.0.0 – 10.255.255.255 class B 172.16.0.0 – 172.31.255.255 class C 192.168.0.0 – 192.168.255.255 Any thing inside this range is private and should be used

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