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Zhenlei Huang 2d3614fb13 bridge: Log MAC address port flapping
MAC flapping occurs when a bridge receives packets with the same source MAC
address on different member interfaces. The common reasons are:
 - user roams from one bridge port to another
 - user has wrong network setup, bridge loops e.g.
 - someone set duplicated ethernet address on his/her nic
 - some bad guy / virus / trojan send spoofed packets

if_bridge currently updates the bridge routing entry silently hence it is hard
to diagnose.

Emit logs when MAC address port flapping occurs to make it easier to diagnose.

Reviewed by:	kp
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D39375
2023-04-07 22:25:41 +08:00
.cirrus-ci Cirrus-CI: add some timing info on pkg install failure 2021-08-04 15:02:00 -04:00
.github Vendor import of OpenSSH 9.3p1 2023-03-16 08:41:22 -04:00
bin If copy_file_range(2) fails with EXDEV, use fall-back. 2023-04-04 07:39:59 +00:00
cddl zfsd: add support for hotplugging spares 2023-04-06 11:58:55 -06:00
contrib wpa_supplicant/hostapd: Fix uninitialized packet pointer on error 2023-04-06 07:27:24 -07:00
crypto ssh: update FREEBSD-upgrade for upstream CheckHostIP default change 2023-03-29 19:32:44 -04:00
etc libcasper: Move helper libraries from /lib/casper to /lib. 2023-03-29 15:04:28 -07:00
gnu gnu diff3: apply patch to committed src, rather than at build time 2022-11-13 21:33:40 -05:00
include Fixes in persistent error log 2023-03-28 16:51:58 -07:00
kerberos5 heimdal: Do not build a redundant source file 2023-04-01 19:18:05 -07:00
lib pmc: Keep a list sorted. 2023-04-05 20:09:28 +01:00
libexec libcasper: Move helper libraries from /lib/casper to /lib. 2023-03-29 15:04:28 -07:00
release pkg-stage.sh: update port trailing version information 2023-03-20 10:36:51 -04:00
rescue rescue: Fix link order of SSL libraries and fetch. 2023-02-02 09:23:02 -08:00
sbin ifconfig: Fix configuring if_bridge with additional operating parameters 2023-04-07 22:25:41 +08:00
secure ssh: Update to OpenSSH 9.3p1 2023-03-16 10:29:55 -04:00
share pci_vendors: update to 2023.04.01 2023-04-06 15:01:10 +02:00
stand zfs: merge openzfs/zfs@431083f75 2023-04-03 16:49:30 +02:00
sys bridge: Log MAC address port flapping 2023-04-07 22:25:41 +08:00
targets retire sconfig(8) ce(4)/cp(4) configuration tool 2022-12-13 15:25:13 -05:00
tests zfsd: add support for hotplugging spares 2023-04-06 11:58:55 -06:00
tools src.conf.5: Expand WITH_LLVM_BINUTILS description 2023-04-05 13:05:15 -04:00
usr.bin llvm-objcopy: link man page as strip.1 when WITH_LLVM_BINUTILS is set 2023-04-06 10:12:21 -04:00
usr.sbin makefs: avoid uninitialized memory in root directory date 2023-04-06 13:47:35 -04:00
.arcconfig arcanist: use FreeBSD/git project repository instead of FreeBSD/svn 2022-08-23 14:16:41 +00:00
.arclint
.cirrus.yml CI: Run pkgbase METALOG lint script 2023-03-14 21:13:46 -04:00
.clang-format clang-format: Add bitset loop macros 2021-09-21 12:08:01 -04:00
.git-blame-ignore-revs Add git-blame ignore file 2023-01-23 15:27:25 -05:00
.gitattributes
.gitignore .gitignore: Ignore LSP generated .cache 2023-03-07 10:04:18 -05:00
CONTRIBUTING.md CONTRIBUTING.md: Fix checkstyle9.pl name 2023-03-27 16:23:13 -04:00
COPYRIGHT Happy New Year 2023! 2023-01-01 13:44:43 +08:00
LOCKS
MAINTAINERS MAINTAINERS: Remove myself from OpenSSL maintenance 2023-03-28 15:44:26 -04:00
Makefile universe: Switch GCC toolchains to GCC 12. 2023-01-27 13:35:13 -08:00
Makefile.inc1 libcasper: Move helper libraries from /lib/casper to /lib. 2023-03-29 15:04:28 -07:00
Makefile.libcompat libcompat: avoid installing include files twice 2022-11-16 19:15:20 -05:00
Makefile.sys.inc
ObsoleteFiles.inc Add libcap_netdb.so.1 to the list of libcasper helper libraries. 2023-03-30 14:54:48 -07:00
README.md Vendor import of OpenSSH 9.3p1 2023-03-16 08:41:22 -04:00
RELNOTES RELNOTES: Add an entry for NFS server support in vnet prisons 2023-03-12 14:55:46 -07:00
UPDATING UPDATING: Document arm video devices renaming. 2023-03-17 13:35:03 +01:00

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