On Wed, 3 Feb 2016 11:13:21 -0500 Allan Jude <allanjude_at_freebsd.org> wrote > On 2016-02-03 10:32, Chris H wrote: > > On Wed, 03 Feb 2016 06:55:47 -0800 "Chris H" <bsd-lists_at_bsdforge.com> wrote > > > >> On Wed, 3 Feb 2016 08:31:43 +0100 Peter Ankerstål <peter_at_pean.org> wrote > >> > >>> Hi! > >>> > >>> I recently upgraded my system to 11-CURRENT (FreeBSD 11.0-CURRENT #0 > >>> r295087: Sun Jan 31 10:21:31 CET 2016) and after that all of my other > >>> devices in the network complains about arp-flapping: > >>> > >>> arp: 172.25.0.1 moved from 00:00:24:d0:9e:5d to 02:e8:ea:15:66:00 on re0 > >>> arp: 172.25.0.1 moved from 02:e8:ea:15:66:00 to 00:00:24:d0:9e:5d on re0 > >>> arp: 172.25.0.1 moved from 00:00:24:d0:9e:5d to 02:e8:ea:15:66:00 on re0 > >>> > >> FWIW I'm seeing this too. As it happened; I had just changed upstream > >> providers, getting a larger static block (IP's), as well as updating > >> my long overdue -CURRENT. So I simply blamed it on their (upstream) > >> network. I'd love to get to the bottom of this, and would be happy to > >> help. > >> > >> FreeBSD dev-box 11.0-CURRENT FreeBSD 11.0-CURRENT #0 r294112: > >> Mon Jan 18 14:25:01 PST 2016 root_at_dev-box:/usr/obj/usr/src/sys/DEVBOX > >> amd64 >> > >> src is at Revision: 406193 > >> > > Well, it would have helped if I had also mentioned that I'm not using > > a bridge, and list the interfaces involved. :/ > > > > nfe0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 > > options=82008<VLAN_MTU,WOL_MAGIC,LINKSTATE> > > > > This also occurs on my 9-STABLE boxes > > re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 > > > > options=8209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC,LIN > > KSTATE> > > nfe0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 > > options=82008<VLAN_MTU,WOL_MAGIC,LINKSTATE> > > > > nfe0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 > > options=82008<VLAN_MTU,WOL_MAGIC,LINKSTATE> > > > > --Chris > >> > >>> > >>> It seems to be flapping between the virtual mac of my bridge interface > >>> and the actual mac adress on the physical interface. This was not the > >>> case when i ran FreeBSD 10.2. Is there some settings I need to do? > >>> > >>> > >>> bridge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu > >>> 1500 > >>> description: wired <-> wifi bridge > >>> ether 02:e8:ea:15:66:00 > >>> inet 172.25.0.1 netmask 0xffffff00 broadcast 172.25.0.255 > >>> inet6 2001:470:de59::1 prefixlen 64 > >>> inet6 fe80::2%bridge0 prefixlen 64 scopeid 0xb > >>> nd6 options=1<PERFORMNUD> > >>> groups: bridge > >>> id 00:00:00:00:00:00 priority 32768 hellotime 2 fwddelay 15 > >>> maxage 20 holdcnt 6 proto rstp maxaddr 2000 timeout 1200 > >>> root id 00:00:00:00:00:00 priority 32768 ifcost 0 port 0 > >>> member: wlan2 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP> > >>> ifmaxaddr 0 port 10 priority 128 path cost 66666 > >>> member: wlan1 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP> > >>> ifmaxaddr 0 port 9 priority 128 path cost 66666 > >>> member: wlan0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP> > >>> ifmaxaddr 0 port 8 priority 128 path cost 22222 > >>> member: em1 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP> > >>> ifmaxaddr 0 port 2 priority 128 path cost 2000000 > >>> > >>> em1: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 > >>> mtu 1500 > >>> description: wired LAN > >>> > >>> options=42098<VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC,VLAN_HWTSO> > >>> ether 00:00:24:d0:9e:5d > >>> nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> > >>> media: Ethernet autoselect (1000baseT <full-duplex>) > >>> status: active > >>> > >>> > >>> /Peter. > >> > > Chris: > If you are not using a bridge, please provide the complete output of > ifconfig, and the log messages about the arp flapping, so we can see > which two interfaces it is bouncing between. > Thank you very much for the reply, Allan. This is what I'm working with/experiencing: Logs from just one of the offending boxes, the same is echoed in the other boxes' logs, as well Feb 3 08:04:48 udns kernel: arp: XX.YY.ZZ.85 moved from 00:24:81:ce:ba:87 to 00:17:10:8e:5e:87 on re0 Feb 3 08:05:58 udns kernel: arp: XX.YY.ZZ.83 moved from 40:61:86:cd:44:97 to 00:17:10:8e:5e:87 on re0 Feb 3 08:08:10 udns kernel: arp: XX.YY.ZZ.83 moved from 00:17:10:8e:5e:87 to 40:61:86:cd:44:97 on re0 Feb 3 08:13:00 udns kernel: arp: XX.YY.ZZ.84 moved from 00:17:10:8e:5e:87 to 00:30:67:5e:29:5d on re0 Feb 3 08:25:40 udns kernel: arp: XX.YY.ZZ.85 moved from 00:24:81:ce:ba:87 to 00:17:10:8e:5e:87 on re0 Feb 3 08:30:37 udns kernel: arp: XX.YY.ZZ.83 moved from 40:61:86:cd:44:97 to 00:17:10:8e:5e:87 on re0 Feb 3 08:36:05 udns kernel: arp: XX.YY.ZZ.84 moved from 00:30:67:5e:29:5d to 00:17:10:8e:5e:87 on re0 Feb 3 08:49:11 udns kernel: arp: XX.YY.ZZ.85 moved from 00:24:81:ce:ba:87 to 00:17:10:8e:5e:87 on re0 Feb 3 08:49:12 udns kernel: arp: XX.YY.ZZ.85 moved from 00:17:10:8e:5e:87 to 00:24:81:ce:ba:87 on re0 Feb 3 08:56:53 udns kernel: arp: XX.YY.ZZ.84 moved from 00:30:67:5e:29:5d to 00:17:10:8e:5e:87 on re0 Feb 3 09:09:09 udns kernel: arp: XX.YY.ZZ.84 moved from 00:17:10:8e:5e:87 to 00:30:67:5e:29:5d on re0 Feb 3 09:09:30 udns kernel: arp: XX.YY.ZZ.85 moved from 00:24:81:ce:ba:87 to 00:17:10:8e:5e:87 on re0 Feb 3 09:16:41 udns kernel: arp: XX.YY.ZZ.83 moved from 40:61:86:cd:44:97 to 00:17:10:8e:5e:87 on re0 11-CURRENT on r294112, from r406193 src: nfe0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=82008<VLAN_MTU,WOL_MAGIC,LINKSTATE> ether 00:24:81:ce:ba:87 inet XX.YY.ZZ.85 netmask 0xffffff00 broadcast XX.YY.ZZ.255 inet6 fe80::224:81ff:fece:ba87%nfe0 prefixlen 64 scopeid 0x1 nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL> media: Ethernet autoselect (1000baseT <full-duplex>) status: active 9-STABLE: re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=8209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC,LINKSTATE> ether 40:61:86:f6:aa:2a inet XX.YY.ZZ.81 netmask 0xffffff00 broadcast XX.YY.ZZ.255 inet6 fe80::4261:86ff:fef6:aa2a%re0 prefixlen 64 scopeid 0x1 nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> media: Ethernet autoselect (1000baseT <full-duplex>) status: active 9-STABLE: nfe0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=82008<VLAN_MTU,WOL_MAGIC,LINKSTATE> ether 40:61:86:cd:44:97 inet XX.YY.ZZ.83 netmask 0xffffff00 broadcast XX.YY.ZZ.255 inet6 fe80::4261:86ff:fecd:4497%nfe0 prefixlen 64 scopeid 0x3 nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> media: Ethernet autoselect (100baseTX <full-duplex>) status: active 9-STABLE: nfe0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=82008<VLAN_MTU,WOL_MAGIC,LINKSTATE> ether 00:30:67:5e:29:5d inet XX.YY.ZZ.84 netmask 0xffffff00 broadcast XX.YY.ZZ.255 inet6 fe80::230:67ff:fe5e:295d%nfe0 prefixlen 64 scopeid 0x3 nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL> media: Ethernet autoselect (100baseTX <full-duplex>) status: active Topography: boxes --> switch --> router --> internet Thanks again! --Chris > -- > Allan JudeReceived on Wed Feb 03 2016 - 16:35:49 UTC
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