I used this feature in a previously switched network ( one vlan)
Now , my network looks like several vlans with a 3750 who acts as the hub and makes routing for vlans ( with SVI and ip helper address) , the dhcp server is in a specfic vlan .
How can I configure dhcp snooping for this,
cause my clients never get dhcp offer from the server,
I simply make this on an access swith :
ip dhcp snooping
ip dhcp snooping vlan 10 !vlan access
ip dhcp snooping trust ! for uplink trunk