How to allow two or more DHCP-Scope access resources each other?

Question

I has create four DHCP Scope for our network (a test server). What i want to do is i want each scope can communicate each other like making a sharing files over network, example:

Assume that my router IP is 192.168.27.1/255.255.252.0 = 1022 host
Assume SCOPE-A = 192.168.25.0 and SCOPE-B = 192.168.26.0
My IP_Address = 192.168.25.50
I want to access share files at SCOPE-B IP_Address = 192.168.26.50

With my current setting, i cannot access share files at 192.168.26.50 from 192.168.25.50

can someone instruct me in this, i want to implement this into our Fortigate 200B

Answer 1

I suspect this is a problem with the subnet masks assigned by the DHCP servers. The mask given by each of them should still be 255.255.252.0 (/22) even though each of them is allocating from a /24 block. If left on the default setting the machines will be looking for a route to what is actually the local subnet.

Answer 2

You only specified one IP on your router, 192.168.27.1 with a mask of 255.255.252.0. That means this network has a range of 192.168.26.0-192.168.27.255. 192.168.25 is in another subnet, you will need another router interface (or use VLANs) in order for devices in 192.168.25.50 to talk to 192.168.26.50.

Answer 3

You are correct in knowing that your entire network range is x.x.24.0 to x.x.27.255, so your issue is most likely not a network addressing problem. Can you ping that address? Is it firewall protected somehow? Are there any rules in place that would prevent you from accessing that device?