PIX dhcprelay via IPSec.

Hi List,

I have a question about relaying DHCP over VPN with PIX.

I have the following setup:

Client
 |
 |
 |
Remote Site PIX running in network-extension mode
|V| 
|P| Internet
|N|
Central PIX acting as concentrator
 |
 |  Net 1
 |
Inside Pix providing access control
 |
 |  Net 2
 |
DHCP Server x.x.x.x

The client needs to talk to the DHCP-Server in Net 2. It can ping the
DHCP fine so routing and all is OK, but the relayed Unicasts on udp/67
seem to die inside the remote PIX. No log messages, no debug messages
(at least in any debug mode I though to try) and still no packet.

I have the following config:

hostname(config)# show dhcprelay
dhcprelay server x.x.x.x outside
dhcprelay enable inside

I see statistics,

hostname(config)# show dhcprelay stat
Packets Relayed
BOOTREQUEST          0
DHCPDISCOVER         48
DHCPREQUEST          0
DHCPDECLINE          0
DHCPRELEASE          0
DHCPINFORM           0

BOOTREPLY            0
DHCPOFFER            0
DHCPACK              0
DHCPNAK              0

but no packet in Net 1 and no packet in Net 2 (got inline sniffers in
both trying to troubleshoot this)

Can anyone point me in the right direction what the problem might be?

Thanks in advance,

Chris