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subnet mask question.

post #1 of 5
Thread Starter 
If I have a subnet mask of 144.104.84.21/26. What will my IP addresses be?
post #2 of 5
144.108.84.1 - 144.108.84.62

.1 Is most likely the gateway
Edited by NitroNarcosis - 10/6/11 at 8:18am
post #3 of 5
Thread Starter 
Can you break down your process?
post #4 of 5
Quote:
Originally Posted by pola cola;15200961 
Can you break down your process?
Subnet mask indicates how many bits are available for the network portion. Any bits not included in the mask are host bits and a member of the same subnet (provided the network bits match).

Out of 32 bits, if you have 26 dedicated to network address, you will have 6 remaining. Through binary the values of each bit are as follows:

32 16 8 4 2 1

Therefore, the maximum amount of hosts per subnet will be 64 (minus one for network address and one for broadcast address). You can divide the last octet 256/64 to determine how many subnets will be available (4).

Therefore, the following could be stated for 144.104.84.21/26:

Network - 144.104.84.0
Subnet Mask - 255.255.255.192 (the two bits given from the last octet are 128+64 in value).
Host address range - 144.104.84.1-144.104.84.62
Your IP : 144.104.84.21

Your specific IP address is 144.104.84.21 as stated. The /26 merely gives you the scope of the subnet you are within.
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Waiting on X399
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II B57 @ X4 3.9 Gigabyte 790FXTA-UD5 Sapphire Radeon 290 8 GB G.Skill 2133 
Hard DriveCoolingOSKeyboard
250 GB 840 EVO Noctua NH-D14 Windows 10 Logitech K350 
PowerCaseMouseMouse Pad
Seasonic x750 Corsair 600T Logitech G100s Razer Goliathus Speed 
Audio
Plantronics Gamecom 788 
  hide details  
Reply
post #5 of 5
Thread Starter 
Quote:
Originally Posted by beers;15201220 
Subnet mask indicates how many bits are available for the network portion. Any bits not included in the mask are host bits and a member of the same subnet (provided the network bits match).

Out of 32 bits, if you have 26 dedicated to network address, you will have 6 remaining. Through binary the values of each bit are as follows:

32 16 8 4 2 1

Therefore, the maximum amount of hosts per subnet will be 64 (minus one for network address and one for broadcast address). You can divide the last octet 256/64 to determine how many subnets will be available (4).

Therefore, the following could be stated for 144.104.84.21/26:

Network - 144.104.84.0
Subnet Mask - 255.255.255.192 (the two bits given from the last octet are 128+64 in value).
Host address range - 144.104.84.1-144.104.84.62
Your IP : 144.104.84.21

Your specific IP address is 144.104.84.21 as stated. The /26 merely gives you the scope of the subnet you are within.

Thanks a lot for the help, I appreciate it.
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