DHCP server for VLANs

[banalas]

I Have created 2 VLANS in my network and i have VLAN1 default on my Cisco 6509
I created VLAN 305 (10.205.24.0/255.255.254.0)
VLAN 1 10.201.16.0/255/255.240.0
Routing Between VLANs working fine and if i use 6509 as my dhcp server for VLAN305 it works fine

But i am trying to use my existing DHCP server which is in VLAN1

i have the foling confoguration on My 6509
Int vlan305
10.205.25.1 255.255.254.0
Ip Helper-address 10.201.16.X

i am not able to get any address for my hosts in VLAn305
if i use a static address on VLAN305 and i can ping my dhcp server in VLAN1

Please Help

Thanks
Sridhar

 

[catchphrase]

When you separate your network into VLANs, you're doing the same thing as subnetting your network. The only way for the VLANs to communicate with each other, is to have a router in place to connect the separate networks(VLANs) together.

 

[catchphrase]

Maybe I should learn to read before posting. Is the router you are using RFC-1542 compliant? If it is not, then the router is not forwarding DHCP broadcast packets. An alternate solution is to setup a DHCP relay agent in your second subnet for proper DHCP communications.

 

[KiscoKid]

Out of interest, does the DHCP pool available to vlan305 include 10.205.25.x and/or 10.205.26.x addresses?