Issues gatewaying through Hyper-V

[Adam Vande More]

On Thu, Oct 29, 2015 at 10:45 PM, Larry Baird <lab at gta.com> wrote:

> I have two identical setups on Hyper-V 2012R2 and Hype-V windows 10.
>
> I have two FreeBSD 10.2-RELEASE-p6 Hyper-V hosts in both cases.
> The first FreeBSD host (client) has one NIC configured to use a Private
> network. The second (gateway) has two nics. One private and one external.
> The gateway box has the gateway_enable option set to YES in its rc.conf.
> The boxes otherwize of very vanilla.
>
> I get failures forwarding thru gateway on both versions of Hyper-V. But
> they fail in different ways.
>

There was a similar issue w/ PF resolved earlier and I'm pretty sure the
fix wasn't in 10.2.

If PF is in use, does switching to ipfw fix it?

I know nothing of HyperV, but I also saw similar behavior on KVM.
Switching the VM NIC away from virtio to intel was a successful workaround.

-- 
Adam