DCHP OFFER response going to relay address not to orginating address

[Dees]

Hi All,
I have a network that sits remote and with DHCP on the central site.  DHCP DISCOVER is reaching the server and the server is responding. DCHP  request source IP is 10.0.8.2 which is tunnel IP which is routable IP on the network but when DCHP responds it is responding to DHCP relay IP  (192.168.1.1) which is not routable not reaching back, is there a way to instruct DHCP to route it back to source IP? Or is this not a valid scenario for the DHCP relay?





Network config 
Vlan 100 (192.168.1.0/24) 192.168.1.1--WAN IP ----------------------------------------------PFSENSE --- > DHCP server                                                                            10.0.8.2   OPEN VPN TUNNEL 

DCHP config 

# This is a very basic subnet declarationshared-network Combined-pools {subnet 192.168.1.0 netmask 255.255.255.0 {  range 192.168.1.100 192.168.1.254;  option subnet-mask 255.255.255.0;  option routers 192.168.1.1;
option domain-name-servers 8.8.8.8, 8.8.4.4;                                    }
Kind regards,Deepesh
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