DHCP snooping

[donglee]

hello guys,

i've got:

- Cisco Catalyst 3750 with some SVIs - Vlan10 and Vlan20;

- MS DHCP server on Vlan10 and ip helper-address on Vlan20 SVI;

- DHCP Snooping with Trusted ports;

everything work just fine...

problem:

i've got another 3750;

- created Vlan30 and related SVI with ip helper-address;

now, the WS-C3750X-24T-S which contains DHCP server is dropping DHCP replies to the 3750 which contains Vlan30 SVI and DHCP clients within. all necessary trunks and DHCP Server are Trusted.

DHCP Snooping configuration:

#ip dhcp snooping vlan 10-30

#no ip dhcp snooping information option

#ip dhcp snooping

i believe it has something to do with option82 but can't find what exactly..

would appreciate any help.