Hi,
I have a problem/issue to resolve.
I configure Fog with this config

Network in VLAN: 10.0.x.x Netmask: 255.255.248.0 
Server IP: 10.0.0.68

Configured DHCP with:

subnet 10.0.0.0 netmask 255.255.248.0 {
        range 10.0.5.1 10.0.5.254;
        option routers 10.0.0.100;
        option subnet-mask 255.255.248.0;
        option broadcast-address 10.0.7.255;
        next-server 10.0.0.68;

Config for my WDS:

if exists user-class and option user-class = "iPXE" {
        filename "http://10.0.0.68/boot.php";
    } else {

        if option arch = 00:00 {

            filename "undionly-mj2.kpxe";
        } else {
#UEFI Bootujemy z WDS UEFI
        next-server 10.249.4.20;
        filename "boot\\x64\\wdsmgfw.efi"
        }
    }

Everything is working ok client systems boot from pxe with WDS and servers also boot corectly.
When i change my new server vlan from 10.0.x.x to 10.249.x.x booting with servers not working,
but when i change adress server address to 10.249.0.68 and mask 255.25.240.0 servers boot coreclty in new vlan 10.249.x.x but clients fail.

My problem i change address change of pxe server.
I need to change adress beacuse i need to remove network 10.0.x.x in future but i still neeed to use it.

My new config will be:

Network in VLAN: 10.249.x.x Netmask: 255.255.240.0 
Server IP: 10.249.0.68

How to config this to work with both vlans 10.0 and 10.249.
On old adress 10.0.0.68 client can boot from WDS with address : 10.249.4.20.