DHCP server for freebsd on IPoIB

Hans Petter Selasky hps at selasky.org
Wed Feb 12 20:07:15 UTC 2020


On 2020-02-12 20:53, Rodney W. Grimes wrote:
>> On 2020-02-12 18:19, Rodney W. Grimes wrote:
>>> Is there support in FreeBSD for bpf at the IB link layer?
>>>
>>
>> BPF support is added per driver. And from my quick grep, ipoib supports
>> BPF. But the format may have a fake ethernet header.
> 
> So that is close, but not exactly what I was asking.  Specifically
> I did not mention ipoib, I want to know can I bpf dump packets at
> the link layer regardless what the layer 3 protocol is.
> 
> And from reading the other email it sounds as if this "fake ethernet
> header" is what is getting in the way of bpf into ipoib working.

You mean the infiniband packets, which wrap the IP-packets?

--HPS



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