Subnet Mask Cheat Sheet Posted here because 95% of the networks are the same and when I encounter a different one I have to think about it…not any more! See RFC 1878 for more details & information. Addresses Hosts Netmask Amount of a Class C /30 4 2 255.255.255.252 1/64 /29 8 6 255.255.255.248 1/32 […]
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