IP Addressing

[Sulaiman Ejaz]

hi !

I'm to ask about IP address classes. Is 10.1.1.1 and 10.2.1.1 same? or 192.168.0.1 and 192.168.1.0 are same? please discuss and provide me some relevant material if anyone has !

[cadet alain]

Hi,

the class is derived from first octet value so first 2 are class A and last 2 are class C.

0-127: class A

128-191: class B

192-223: class C

Regards

Alain

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[Sulaiman Ejaz]

Hi, thankyou,

if i say i've two ipv4 addresses 192.168.1.1/24 and 192.168.2.1/24 then whats that mean? would both ping each other?

[cadet alain]

Hi,

No, not unless you were using a routing device between them as they are in 2 different subnets.

Regards

Alain

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[Christopher Bell]

Yes, both examples.  10.1.1.1 and 10.2.1.1 are both considered class A (but could be different subnets depending on the mask).  192.168.0.1 and 192.168.0.1 are both consider class C.

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