help needed in packet tracer

hey, im new here, and im new in all of this:D
im going to ccna exploration in croatia, and i need help whit this exercise.
we got 131.128.210.0/23 address, and we needed to subnet it with:
subnet A ->27hosts
subnet B ->56hosts
subnet C ->126hosts
subnet D ->220host

+ 5WAN.

i know to do that (i wrote that in screenshot), but im new with packet tracer. i know commands for configuring routers, and switches, but im unsecure where is going which ip, so if someone can configure (for example Subnet A), that would be a lot of help.

exercise.JPG

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Comments

chmorin

I think this is all you are asking. Look at how many hosts Subnet A, and find the network that has that many. In this case, it is the lower left network connected to R1. So configure its connected interface with the subnet information.

R1(Config)int fa0/011
R1(Config-Interface)ip address 131.128.211.193 255.255.255.224
R1(Config-Interface)no shutdown
R1(Config-Interface)^Z
R1#wr
Building Configuration...
R1#

If you gave your hosts static IP Address (Or configure a DHCP server on your router) within the subnet, and have their default gateway be 131.128.211.193 you should be able to ping across the subnet.