Subnetting Part 1

Class C Subnetting example

Category:

Education

Tags:

• subnetting
• subnet
• network

[notomab3]

Well you are by far the best teacher i have found for subnetting, However i wish you would do a video subnetting another class. Class C is pretty common . where you have brought me to the understanding of subnetting a class C network , could you do one while borrorowing from the third octet . Much respect and thank you very much

[mtasman]

@notomab3

like to help ..but it's not possible to borrow bits from 3rd octet on a class C... in classful subnetting.. VLSM/CIDR is another story.. maybe check my class B .. & A videos

[thethirdeyefunction]

does this mean that each subnet in this case can only have 16 hosts?

since there are only 4 bits left in the host section

[mtasman]

Hi thethirdeyefunction

Yes there are 4 host bits left .. so there are 14 (16 minus 2 ) possible host addresses available .. not quite 16 .. as you can not use the first address ( all zeros 0 0 0 0 ) or the last address ( all ones 1111) .. as this is the broadcast address...

Cheers

[kennethcharlesrhea]

@wwwmarocbiladicom You need to reserve two addresses to define the network address and the broadcast address of every subnet. For example, you cannot assign 192.11.1.255 to a host because that address is used to send packets to ALL hosts in the 192.11.1.0 subnet simultaneously (such as ARP will do when looking for the MAC address of a specific host, or when a newly connected host needs an IP address from a nearby DHCP server).

[wwwmarocbiladicom]

what do you mean by when we borrow from the host portion, that there is always 2 left in any class?

[winlin11]

Speaaaaaaaaaaak UP please!!!!!!!!!!!!!!!!

[Trololololoish]

How is this helpful? You cannot hear anything?

[slangslang1]

Hey i have a question,

how did you get 255.255.255.0 for the subnet mask? Is that always the subnet mask for class c subnetting, or did you have to do an equasion, or something?

[DecadenceBeyond12]

thanks for this tutorial :) I cudnt figure out what the bit count was but now I know that its the power of... thanks :)

[lesleyBig]

what a tutorial.!!

a week ago, i overheard a conversation on TCP/IP from someone who was bragging on the subject:-) having heard only of the expression "TCP/IP", I decided to look up a tutorial on Youtube, so i found yours.Sir, you re a guru..! :-)..within one hour i not only understood the concepts of subnetting, andding and some routing, but know enough now to judge that all he was telling was craps. Thanks.

[lesleyBig]

what a tutorial.!!

a week ago, i overheard a conversation on TCP/IP from someone who was bragging on the subject:-)knowing nothing and having heard only of the expression "TCP/IP", I decided to look up a tutorial on Youtube, so i found yours.Sir, you re a guru..! :-)..within one hour i not only understood the concepts of subnetting, andding and some routing, but know enough now to judge that all he was telling was craps. Thanks.