IP Helper still no DHCP address

Question

I have a Cisco 3560 switch with the DHCP server and all workstations plugged in to it. Currently all workstations and servers are on the 10.1.35.0 subnet. I created a new DHCP scope for 10.1.36.0 I want to seperate the servers and workstations. On the rtr I added a secondary Ip address of 10.1.36.2
interface FastEthernet0/0
description connected to 10.1.35.0
ip address 10.1.36.2 255.255.255.0 secondary
ip address 10.1.35.2 255.255.255.0
ip helper-address 10.1.35.52
ip helper-address 10.1.34.55
no ip redirects
duplex auto
speed auto
If I manually assign a 10.1.36 address toa workstation I can access all network resources just fine. If I try to get an address via DHCP I never get an address. My question is why is the DHCP not working? I know the scope is setup correctly. Is there something I need to do on the switch? Below is the switch config. I do not think I even need the IP helper statements since the DHCP server is on the same switch and not across the WAN link.
GWD-3560-48-1#sh run
Building configuration...
Current configuration : 3437 bytes
version 12.2
no service pad
service timestamps debug datetime localtime show-timezone
service timestamps log datetime localtime show-timezone
service password-encryption
hostname GWD-3560-48-1
logging buffered 16000 debugging
enable password 7 073C354D5E054A2844
no aaa new-model
ip subnet-zero
no file verify auto
spanning-tree mode pvst
spanning-tree extend system-id
vlan internal allocation policy ascending
interface FastEthernet0/1
description Link to Router
interface FastEthernet0/2
spanning-tree portfast
interface FastEthernet0/3
spanning-tree portfast
interface GigabitEthernet0/1
interface GigabitEthernet0/2
interface Vlan1
ip address 10.1.35.6 255.255.255.0
ip default-gateway 10.1.35.2
ip classless

Answer 1

Del
Your description seems to be talking about 10.1.35.0 and 10.1.36.0 and those are the address and secondary address. But the helper addresses in the config are 10.1.35.52 and 10.1.34.55. I do not understand why you have a helper address for 10.1.35.52 since that address is already within the subnet. You only need helper address to forward to something outside of the subnet (or since we are now dealing with secondary addresses it would be more accurate to say forwarding outside the broadcast domain).
Is the DHCP server at 10.1.35.52 or at 10.1.34.55? Or are there two servers?
I also wonder why you are attempting to define a second subnet on the interface. If the servers and clients are still in the same VLAN (and therefore in the same broadcast domain) what is the benefit of having a separate subnet? A second subnet will not prevent the devices from direct communication. If you could help us understand what you are trying to resolve or what you are trying to accomplish with this we might be able to help you better.
Here are a couple of ideas that might be helpful:
It is my understanding that if two scopes are defined for the same broadcast domain and are reached by ip helper-address that the server will assign addresses from the first pool till it is used up before it will assign addresses from the second pool.
There was a discussion on one of the forums recently about specifying a dhcp smart-relay parameter which was stated was helpful in assigning addresses from two pools. I have not used that and do not know if it will really help with your problem, but you might waqnt to check it out.
HTH
Rick