by Administrator
29. June 2009 22:30
• Class A networks
– First octet values range from 1 through 126.
– First octet starts with bit 0.
– Network mask is 8 bits, written /8 or 255.0.0.0.
– 1.0.0.0 through 126.0.0.0 are class A networks with 16777214 hosts each.
• Class B networks
– First octet values range from 128 through 191.
– First octet starts with binary pattern 10.
– Network mask is 16 bits, written /16 or 255.255.0.0.
– 128.0.0.0 through 191.255.0.0 are class B networks, with 65534 hosts each.
• Class C networks
– First octet values range from 192 through 223.
– First octet starts with binary pattern 110.
– Network mask is 24 bits, written /24 or 255.255.255.0.
– 192.0.0.0 through 223.255.255.0 are class C networks, with 254 hosts each
3227e31b-20a9-4d91-9d9f-381ccd1eaa85|0|.0
Tags: networking