MPLS network with DHCP on firewall

[Edgaras Budrys]

Looking for little help here. Just got second MPLS tunnel for Guest data and am abit confused how do I assign DHCP on it.

On Main office i have already created a separate network and configured firewall to be DHCP and routing to outside interface  (Green cables) 

Firewall acts as DHCP for network connected to interface GuestZone (on Switch its VLAN666). It will assign IPs in range 10.10.1.10-100 /24  - this is simple and works fine. Just I needed to dedicate one physical interface on firewall and assign dhcp to it. 

How can I enable DHCP on firewall for guest network connected trough MPLS (Red Cables)

On Factory MPLS has ip 10.10.2.1/24 and on main side this connection interface has ip 10.10.1.1/24 

Can firewall interface be reused for both networks ?  Guest network should only have access to firewall outside interface. 

[Sebastian Helmer]

I may see two options:

use gre tunnel through the MPLS if the switch supports that

Maybe an ACL on the svi at the Branche you create for the guests. Where u could allow only the traffic u want. Like deny to internal and allow dhcp as well as traffic to the firewall and the internet or so.