DHCP and VPN Layer 2 help

[Mamukata]

Hi all,
please help me to can configure the DHCP server on each side of the tunnel.
I have configured a VPN Layer 2 and all working, all work without the DHCP that didn't get an IP if a PC is connected at the other side of the tunnel.
In my screen, the DHCP is able to get the IP to twice PC on the right but is not for PC in the left side.
I need to set some special rule to can be able to get IP at the left side PC.
Thank's to all for help.

regards