DHCP on Cisco 6509 MSFC not redirecting Microsoft RIS PXE requests

Hi All,

I'm using Microsoft Remote Installation Services successfully. I need to move from using our Win2k DHCP Servers to using the MSFC card on a Cisco 6509.

The current setup is this:
interface Vlan9
 description Admin
 ip address 192.168.66.1 255.255.255.128
 ip helper-address 192.168.64.143                        (Win2k DHCP Server)
 ip helper-address 192.168.64.144                        (Win2k DHCP Server)
 ip helper-address 192.168.64.148                        (Win2k RIS Server)
 no ip redirects

When I change to using DHCP on the MSFC, the network card can not longer boot from the RIS Server.

I have used this setup on the MSFC:
ip dhcp pool vlan9
  network 192.168.66.0 255.255.255.128
  bootfile startrom.com
  domain-name ourdomain.com
  dns-server 192.168.64.143 192.168.64.144
  default-router 192.168.66.1
  option 66 ascii "192.168.64.148"
  option 60 ascii "PXEClient"

And removed the IP helper records for the win2k DHCP servers:
interface Vlan9
 description Admin
 ip address 192.168.66.1 255.255.255.128
 ip helper-address 192.168.64.148                        (Win2k RIS Server)
 no ip redirects

I have tried this with and without the ip helper-address 192.168.64.148  line, and with and without the bootfile and optionn entries in the DHCP scope.

Sorry about the low points value, it's all I have left to my name.

Regards,

Andrew