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Tue, 10 Jun 2025 07:57:28 GMT (envelope-from git) Date: Tue, 10 Jun 2025 07:57:28 GMT Message-Id: <202506100757.55A7vSC0011556@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Maxim Konovalov Subject: git: b53120be1656 - stable/14 - if_bridge.4: clarify how if_bridge assigns a MAC address List-Id: Commits to the stable branches of the FreeBSD src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-branches List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-branches@freebsd.org Sender: owner-dev-commits-src-branches@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: maxim X-Git-Repository: src X-Git-Refname: refs/heads/stable/14 X-Git-Reftype: branch X-Git-Commit: b53120be165637066b06203f246364a128041a2f Auto-Submitted: auto-generated The branch stable/14 has been updated by maxim: URL: https://cgit.FreeBSD.org/src/commit/?id=b53120be165637066b06203f246364a128041a2f commit b53120be165637066b06203f246364a128041a2f Author: Maxim Konovalov AuthorDate: 2025-06-03 19:19:59 +0000 Commit: Maxim Konovalov CommitDate: 2025-06-10 07:52:00 +0000 if_bridge.4: clarify how if_bridge assigns a MAC address PR: 283400 MFC after: 1 week (cherry picked from commit 08bc0097734824ff436769a95569e32575b51da3) --- share/man/man4/bridge.4 | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/share/man/man4/bridge.4 b/share/man/man4/bridge.4 index 2c3bfd6aedfa..da47ba62b854 100644 --- a/share/man/man4/bridge.4 +++ b/share/man/man4/bridge.4 @@ -36,7 +36,7 @@ .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE .\" POSSIBILITY OF SUCH DAMAGE. .\" -.Dd May 5, 2025 +.Dd May 28, 2025 .Dt IF_BRIDGE 4 .Os .Sh NAME @@ -79,10 +79,12 @@ command or using the variable in .Xr rc.conf 5 . .Pp -The +When it is created, the .Nm -interface randomly chooses a link (MAC) address in the range reserved for -locally administered addresses when it is created. +interface gets assigned a link (MAC) address in the range of universally +administered addresses reserved for the FreeBSD Foundation by hashing +the host UUID, jail name, and the interface name. +If this fails, a random, locally administered address is generated instead. This address is guaranteed to be unique .Em only across all