Are you using Intel pro 1000 PT (ExPI9400PT server adapter or Intel Quad port bypass server adapter (this one support bypass mode)
If it is expi9400PT , then I don't think it support bypass.
Thank you for the reply.
I'm using the intel pro/1000 pt quad port bypass adapter, EXPI9014PTBLK.
Can i ask as well what is the difference between PT and AT. This is because i did a check with "lspci -vvnn" to show the device connected and it state there AT instead of PT. The packaging I have with me states PT.
This is the result from lspci -vvnn:
04:00.0 Ethernet controller : Intel Corporation 82571EB PRO/1000 AT Quad Port Bypass Adapter [8086:10a0] (rev 06)
Subsystem: Intel Corporation 82571EB PRO/1000 AT Quad Port Bypass Adapter [8086:10a0]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 32
Region 0: Memory at fe9e0000 (32-bit, non-prefetchable) [size=128K]
Region 1: Memory at fe9c0000 (32-bit, non-prefetchable) [size=128K]
Region 2: I/O ports at cc00 [size=32]
Expansion ROM at fe9a0000 [disabled] [size=128K]
Capabilities: [c8] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=1 PME-
Capabilities: [d0] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable+
Address: 00000000fee0100c Data: 4142
Capabilities: [e0] Express (v1) Endpoint, MSI 00
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <512ns, L1 <64us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE- FLReset-
DevCtl: Report errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr+ FatalErr- UnsuppReq+ AuxPwr- TransPend-
LnkCap: Port #2, Speed 2.5GT/s, Width x4, ASPM L0s, Latency L0 <4us, L1 <64us
ClockPM- Suprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x4, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
Capabilities:  Advanced Error Reporting <?>
Capabilities:  Device Serial Number 40-f5-f8-ff-ff-0c-0e-00
Kernel driver in use: e1000e
Kernel modules: e1000e
This is Doug from the factory. The bypass functionality information on our bypass adapters are available via the premier.intel.com support service, or via the distributor or extended sales force team member that sold your organization the card. Bypass adapters were designed to be used by development partners and not for general end user use. As such the support model is unlike our normal adapters. If you don't have access to premier.intel.com and/or the company that got the card, please private e-mail me and I'll see what I can do for you.