[Bug 185633] [pf] scrubbing bug in transparent mode bug with bigger than MTU UDP packet

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Wed Aug 31 06:18:04 UTC 2016


--- Comment #9 from Olivier Cochard <olivier at freebsd.org> ---
I've reproduce the problem under VirtualBox (with em interface) and on a real
hardware lab (with igb interface).

And I've studied the tcpdump with pf-bridge-scrub vs pf-bridge-without_scrub:
Once scrub is enabled: the IP payload is translated as an Ethernet payload,
adding an Ethernet header is missing.
I've attached pcaps file and a screenshot of my wireshark analysis.

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