My server blade is in a IBM blade centre and it's with builtin D-Link switch.
This Blade Centre9BC) attached to a external 3750 switch which does VLAN routing. I have 3 VLANs configured
DHCP server is behind the uplink L3 switch, it's working fine with windows level DHCP, I can renew address etc
But at PXE Boot level it does not work, config of the L3 switch attached.
I debug ip packet detail 141
with this out put
Dec 8 12:15:02: IP: s=0.0.0.0 (Vlan20), d=255.255.255.255, len 350, rcvd 2
Dec 8 12:15:02: UDP src=68, dst=67
Dec 8 12:15:02: IP: s=0.0.0.0 (Vlan20), d=255.255.255.255, len 350, stop process pak for forus packet
Dec 8 12:15:02: UDP src=68, dst=67
!
Config of th el3 switch
interface Vlan10
ip address 10.10.78.1 255.255.255.0
!
interface Vlan20
ip address 10.78.78.1 255.255.255.0
ip helper-address 192.168.78.38
ip directed-broadcast
!
interface Vlan78
ip address 192.168.78.40 255.255.255.0
ip directed-broadcast
ip forward-protocol spanning-tree
interface GigabitEthernet1/0/44
description Trunc Port to Blade centre Switch 2
switchport trunk encapsulation dot1q
switchport trunk native vlan 78
switchport mode trunk
switchport nonegotiate
spanning-tree portfast trunk
!
interface GigabitEthernet1/0/45
description Trunc Port to Blade centre Switch 1
switchport trunk encapsulation dot1q
switchport trunk native vlan 78
switchport mode trunk
switchport nonegotiate
spanning-tree portfast trunk
