Windows 10 (Network diagram) help needed for online course....

TechieGuy

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Joined
Oct 18, 2019
So I am enrolled in an Intro to Networks course online, I was hoping someone could assist me with a hang-up I am having....So for class purposes we are just beginning to design a logical network diagram and are at the point of establishing IP addresses. The assignment looks like this 192.168.0.0/24

Internet----> Modem----> 24port switch----> 3 routers from the switch (3 cat6 lines from switch to each router #1 #2 #3--->office #1 #2 #3 with each having a desktop and cat6 from router/s to desktop/s--->wifi devices. So what Ip addresses are the routers, desktops assigned using 192.168.0.0/24?


(and yes, the instructor said the design of having no router after the modem was a flaw BUT thats what the college assignment is at this point)
 
There is no technical specification or requirement when assigning IP addresses as long as they are within the configure segment range.

An IPv4 address is 32 bits in length represented in dotted decimal notation in groups of four so from 0.0.0.0 - 255.255.255.255

Those with a starting address of 192.168 are considered Class C addresses in a classful address assignment. The /24 is called CIDR notation and represents the subnet bit mask which tells how many bits are used to represent the "network id" part of the address by ANDing the bits.

192.168.0.0 and /24

11000000.10101000.00000000.00000000
11111111.11111111.11111111.00000000
------------------------------------------------
11000000.10101000.00000000 24 bits
192.168.0.X is the network segment

Since 32-24 = 8 we have 8 bits or 2^8 = 256 addresses to use (minus 2 for the network segment and broadcast)
X.X.X.0 = network segment identifier
X.X.X.255 = broadcast

You are free to choose any address between 192.168.0.1 - 192.168.0.254 as your router addresses


Technically though you would have this division in LANs
|--------------Separate LAN------------|--------Separate LAN-------|
Modem-----------SWITCH----------Router----------Computers-----|

A switch switches connections between logically grouped devices (those on the same LAN) and a router (routes between LANS)
 
(and yes, the instructor said the design of having no router after the modem was a flaw BUT thats what the college assignment is at this point)
If I were you I wouldn't follow the WRONG ASSIGNMENT but rather do it the right way: definitely routers after modem.
By the way, most of the routers today have the modem integrated into them. That assignment seems to be outdated.
 
Actually most of them don't. Those rented from an ISP can sometimes, but I'd do the assignment as the instructor has it laid out.
 
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