Network settings help

I have an issue with two routers on one network both having DHCP servers running one can be switched off but when it is the customer says some devices no longer receive IP addresses

Please see the attached network diagram for more information.

Summery of the setup:

DHCP server 1:

IP range: 192.168.2.1 – 192.168.2.252

DHCP server 2:

IP range: 192.168.0.100 – 192.168.0.200

Both using a subnet mask of: 255.255.255.0


I have given the following information:

These are two different IP address ranges, which could be causing the communication issue with the printer.

For a class C IP address (with your subnet mask) you can use the following settings:

Start host address: 192.168.0.1
End host address: 192.168.0.254
Max number of hosts: 254

Using a subnet mask of: 255.255.255.0

You also have your DHCP lease set for two days, which is possibly why everything works for a few days and then you start getting issues.

I have suggested:

Turning one of the DHCP servers off and just use the one, devices connected to the second router should still receive an IP address from the DHCP server on the other router.

This will stop the different IP address ranges conflicting with each other and everything should be able to communicate properly.

The other option is to change the subnet mask on all devices to: 255.255.254.0

This would give you the following IP range:

Start host address: 192.168.0.1
End host address: 192.168.1.254
Max number of hosts: 510

Using a subnet mask of: 255.255.254.0

This method would allow you to keep both DHCP servers running without causing any problems.

My question:

Is the information that I have given correct?
Could anyone offer a different solution?

Thanks,

drwinny

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