I am having issues getting PXE boot to work on a cisco 3750 stack. Basically, I need to do a PXE boot in order to deploy desktops but I am not getting an IP address from DHCP. The PXE server is fine and DHCP is also ok, so I was told to check on the network side. vlan 208 should Lease IP addresses on clients. IP helper is set to my DHCP server. Any advise?
All switchpors are configured:
switchport access vlan 208 (Network)
switchport voice vlan 209 (Voice)
srr-queue bandwidth share 10 10 60 20
mls qos trust device cisco-phone
mls qos trust cos
no snmp trap link-status
auto qos voip cisco-phone
service-policy input AutoQoS-Police-CiscoPhone
We just had a very similar occurrence. I was setting a port for PXE boot, but the device would not come up, saying no DHCP response.
removed this line form the interface and it worked:
no mls qos trust dscp
We have also found setting portfast on is useful.