Hi I have configured a Dual Hub - Dual DMVPN Layout and want to use one single DHCP sever on the central site. I have configured "ip helper-address addr_of_dhcp_srv" on the spokes and I can se in my debug that I receive a broadcast bootp request from my client in to the lan interface on the spoke router. But on the hub I do not se any relayed bootp packets going through. Does any know if there is a limitation with ip helper-address and GRE/IPSEC?