I am trying to create a subnet plan for below network

[oneManArmyx]

I need to Create the IP addressing plan of the three departments and WAN links by VLSM, i have already done subnetting for departments, mainn ip adress for NY is 200.100.0.0/24 and for wan connections 150.50.30.0/28 should be used i need to know how to link four routers using 150.50.30.0/28

[luis_cordova]

Hi @oneManArmyx 

You can divide the net with mask /28 into 4 nets with mask /30.
So it would be something like this:

150.50.30.0/30

150.50.30.4/30

150.50.30.8/30

150.50.30.12/30

You can use each of these networks for the 4 wan networks of your topology.

Regards

[paul driver]

Hello

Please review the attached file it should allow you to complete your subletting.