How to disable anti-spoofing in ESXi5.5

I have a ubuntu VM running in an ESXi5.5 host. I attached two SR-IOV NICs to the VM, and inside VM I create a bond with the two NICs. The issue is that the traffic from the VM cannot go to the uplink.

On the host I can see the following messages in vmkernel.log. I guess it is because the bonding changes the MAC of a packet, and the anti-spoofing on the host physical NIC does not allow it.

2016-02-16T19:46:37.162Z cpu4:33541)<4>ixgbe 0000:02:00.1: vmnic1: 1 Spoofed packets detected

2016-02-16T19:46:39.348Z cpu22:33551)<4>ixgbe 0000:02:00.1: vmnic1: 2 Spoofed packets detected

How can I disable anti-spoofing in ESXi 5.5?

Thanks,

Toby