We've got a few controller-only VLANs set up running source nat inside and local DHCP scopes on the controller, but I'm doing some testing to see about using our existing external DHCP server for these VLANs. So far I'm not having much luck. Here's the setup:
Role: vending, VLAN51
any any dhcp permit
block internal networks (10.x)
allowall
VLAN/IP: 51
IP: 192.168.3.1/24
source nat inside
DHCP Helper Address: 10.64.10.23 (the controller can reach this)
This VLAN isn't associated with any physical port or port channel.
Will this not work, or am I just missing something dumb?