Dividing a network into subnets - how to do it?

Question

Computer networks

Colleagues, tell me, please! They asked me to help with the work, in itself it looks nonsense, but! I can't fucking figure out how to subnet it to meet the requirements - minimum address consumption and best summarization. Scheme:
and data for it - 32.154.192.0/18
The plugging caused summation requirements for me (I didn’t encounter this at all at work!) - that is, to combine routers, for example, I split a given network / 18 range into networks / 22 range, seven pieces - according to the number of channels between routers. They see each other, somewhere I set up statics, in the middle - RIP (according to the requirements of the work). And what range then to give computers? Do I understand correctly that, for example, for PC0 and PC1, it will be necessary to allocate a subnet from the /22 subnet in which R_2_1 is located? And if so, how to do it correctly? Or am I basically doing it wrong?
I really don't want to set the person up.

Answer 1

1. Select from the range /18 subnets that will be used as butt.
(let's say routers have only L3 interfaces)
For this, a network with a /30 mask is USUALLY used (we will not consider the cases /31, /32 and use addresses 169.х.х.х as butt networks) in total, a subnet will be enough for us to connect routers /thirty.
For a laptop and a server, it's also /30, and for two groups of PCs, it's /29
2. Define the summation zones (I see 6 pieces here) and assign IP addresses from the ranges that can be summarized.
EXAMPLE: CONDITIONAL ZONE 1 is the server, R_2_0 and R_1_0. SERVER-PT----R_2_0 is 32.154.192.0/30 splice and R_2_0---R_1_0 is 32.154.192.4/30, the total output network with R_1_0 will be 32.154.192.0/29. Etc.