CCNA subnet

ndut2ndut2 ■□□□□□□□□□ Posts: 5Member ■□□□□□□□□□
hi guys i write some tutorial about subnet i hope this will be usefull
http://ndut.net/content/view/14/9 pls excuse my horible writing style and some grammar mistake. Pls Comment about the tutorial and the thing that to be improve. Thank you guys.
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