Possible Routing Issue

[Fuzz_Therapy]

We just replaced our core and are having an issue with our VDI environment.

The ip range for these devices is:

10.240.0.100 - 10.240.5.254

Subnet: 255.255.240.0

If a VDI device boots up and pulls one of the 10.240.0.x addresses it connects and works fine.  But if it pulls anything from 10.240.1.x-10.240.5.x it wont boot.  Routing and netmask appears correct, just curious if anyone had any suggestions on what to look for.

[Georg Pauwen]

Hello, 

routing in what context, what does the network look like ? Which default gateway is assigned to the devices ?

[Fuzz_Therapy]

We ended up finding the issue.  Turns out the PVS servers had a 255 netmask instead of 240.  How they ever worked in the past, I have no idea.  Should have never worked.  

Thanks for the reply anyways, Georg.

[Georg Pauwen]

Good stuff, glad you have got it resolved...

[milan.kulik]

Possibly proxy ARP was enabled somewhere in the past "fixing" the wrong mask issue?

BR,

Milan