CFR: bridge locking
Daniel C. Sobral
dcs at tcoip.com.br
Wed Aug 20 12:51:07 PDT 2003
Julian Elischer wrote:
> On Wed, 20 Aug 2003, Robert Watson wrote:
>>On Wed, 20 Aug 2003, Lars Eggert wrote:
>>>I think you mentioned in the past that NetBSD (OpenBSD?) has bridge code
>>>that implements the pseudo-device approach?
> FreeBSD has both.
> If you use netgraph bridging then you are using a more
> "link level device" like approach.
Nope. Neither netgraph nor bridge(4) produce a pseudo-interface.
Unfortunately. It would have solved the problem I was discussing with
you (alas, I found a y2k thread, in which Archie and you were also
present, about that very same problem).
Netgraph's ng_iface is not enough, because it's much more limitted.
>>I had an older set of patches (4.x?) that implemented a bridgeX interface
>>that saw all of the packets bridged by the bridge. However, it was just a
>>pseudo-interface for the purposes of BPF -- it didn't carry a link local
>>address, etc. I never tested for interop with IPv6. You can find a very
>>old version of this at www.watson.org/~robert/freebsd/bridge.patch. It
>>required some cleanup of the interactions between the bridge code and IPFW
>>code that have probably since happened in the main tree as well, so the
>>chances of this applying or working are effectively 0. :-)
>>Robert N M Watson FreeBSD Core Team, TrustedBSD Projects
>>robert at fledge.watson.org Network Associates Laboratories
>>freebsd-net at freebsd.org mailing list
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Daniel C. Sobral (8-DCS)
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Daniel.Sobral at tcoip.com.br
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