DHCP relay in vrf

[PatrickNoblet]

I try to use dhcp relay in a vrf but i have some problems, if I use simply an ip helper inside a vrf, nothing append, the dhcp request is drop..
I search comamnd for dhcp snooping : nothing. I think I forgot something..

Does somebody know how to ?

configuration of ip helper
Ip helper :
Forward Delay(seconds) = 0,
Max number of hops = 16,
Relay Agent Information = Disabled,
PXE support = Disabled,
Forward option = per-vlan mode,
Bootup Option = Disable,
Forwarding address list for Vlan (2904):
172.29.1.101
172.29.1.101 is in the same vrf