Re: vlan tagged packets and libpcap breakage

[ebiederm () xmission com (Eric W. Biederman)]

Daniel Borkmann <danborkmann () iogearbox net> writes:

> Speaking of netsniff-ng where we don't reconstruct VLAN headers, users
> have reported that depending on the NIC/driver resp. ethtool setting,
> they can come in stripped or not (in the pf_packet's rx_ring buffer).
> However, I assume VLAN AUXDATA is always consistent (and so the
> BPF/BPF JIT filtering).

Yes it was a mess before we added software stripping of the vlan headers
a year ago.

Eric
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