wintermute000
Explorer
- Joined
- Aug 8, 2014
- Messages
- 83
I'm getting occasional email alerts like this
freenas.xxx.com.au kernel log messages:
> arp: (LAN IP) moved from 02:xxxx to yyyy:4f:06 on epair3b
> arp: (LAN IP) moved from 02:xxxx to yyyy:4f:06 on epair2b
> arp: (LAN IP) moved from 02:xxxx to yyyy:4f:06 on epair1b
> arp: (LAN IP) moved from 02:xxxx to yyyy:4f:06 on epair0b
Now 4f06 is my NIC's real MAC, the MACs on the left are virtual from the epairs.
I have not noticed any 'problems' with functionality at all, and they tend to come through in the middle of the night. I've had maybe two in a week.
a.) what the heck is going on
b.) should i be worried
This doesn't make a lot of sense to me as my jails have their own IPs obviously, so why would my LAN IP go from a jail virtual interface MAC (where its never been) back to the real MAC. Also I am not being sent the message that my LAN IP has 'left' my real NIC and moved across to the virtual. As a networker by day (i.e. router guy) this is really confusing and worrying. Or is my NIC driver/kernel having hiccups? Why would my jail virtual interfaces be responding to ARPs for my real IP that's configured against a real NIC with a real MAC? I do understand that maybe its bridged across but the msg is ambiguous i.e. what the heck is 'moved' mean, is the kernel somehow resolving an ARP request (I presume) and replying with teh MAC of my jail for some reason?
9.2.1.7
Asrock C2550D4I, 16Gb ECC DDR3, 6x4Tb HGST Deskstar NAS HDD in RAIDZ2, 1x256Gb Sandisk Ultra Plus SSD in ISCSI extent, 1x 256Gb Sandisk Ultra Plus SSD scratch disk, Seasonic SSR-450RM 450W, Fractal Design Define R2
igb0 with the problem LAN IP above
igb1 on second nic with different IP/MAC, not referenced in this error
both NICs are intel
a few jails
Thanks in advance
freenas.xxx.com.au kernel log messages:
> arp: (LAN IP) moved from 02:xxxx to yyyy:4f:06 on epair3b
> arp: (LAN IP) moved from 02:xxxx to yyyy:4f:06 on epair2b
> arp: (LAN IP) moved from 02:xxxx to yyyy:4f:06 on epair1b
> arp: (LAN IP) moved from 02:xxxx to yyyy:4f:06 on epair0b
Now 4f06 is my NIC's real MAC, the MACs on the left are virtual from the epairs.
I have not noticed any 'problems' with functionality at all, and they tend to come through in the middle of the night. I've had maybe two in a week.
a.) what the heck is going on
b.) should i be worried
This doesn't make a lot of sense to me as my jails have their own IPs obviously, so why would my LAN IP go from a jail virtual interface MAC (where its never been) back to the real MAC. Also I am not being sent the message that my LAN IP has 'left' my real NIC and moved across to the virtual. As a networker by day (i.e. router guy) this is really confusing and worrying. Or is my NIC driver/kernel having hiccups? Why would my jail virtual interfaces be responding to ARPs for my real IP that's configured against a real NIC with a real MAC? I do understand that maybe its bridged across but the msg is ambiguous i.e. what the heck is 'moved' mean, is the kernel somehow resolving an ARP request (I presume) and replying with teh MAC of my jail for some reason?
9.2.1.7
Asrock C2550D4I, 16Gb ECC DDR3, 6x4Tb HGST Deskstar NAS HDD in RAIDZ2, 1x256Gb Sandisk Ultra Plus SSD in ISCSI extent, 1x 256Gb Sandisk Ultra Plus SSD scratch disk, Seasonic SSR-450RM 450W, Fractal Design Define R2
igb0 with the problem LAN IP above
igb1 on second nic with different IP/MAC, not referenced in this error
both NICs are intel
a few jails
Thanks in advance
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