Kernel: Arp moved from - to
-
@cmb:
Do you have a Time Capsule or AirPort Extreme to go with the AppleTV? If so, that is, unfortunately, normal.
Wow, really? Why's that? Odd that effectively the symptoms of an IP conflict would be normal, but I recall seeing that once on my home network also between two Apple vendor MACs. Don't have a time capsule or AirPort Extreme, have 2 Apple TVs, a couple iPhones, couple iPads, couple MacBook Pros, and an iMac. At the time I didn't even have time to check which MAC went to which device, and it hasn't recurred so I haven't bothered digging into it.
It's a "feature" and part of the Bonjour Sleep Proxy.
http://support.apple.com/kb/HT3774
Also:
https://discussions.apple.com/thread/2160614
http://blog.martinshouse.com/2009/11/apple-time-capsule-steals-ip-addresses.html?m=1
http://en.usenet.digipedia.org/thread/16243/200/ -
@cmb:
Do you have a Time Capsule or AirPort Extreme to go with the AppleTV? If so, that is, unfortunately, normal.
Wow, really? Why's that? Odd that effectively the symptoms of an IP conflict would be normal, but I recall seeing that once on my home network also between two Apple vendor MACs. Don't have a time capsule or AirPort Extreme, have 2 Apple TVs, a couple iPhones, couple iPads, couple MacBook Pros, and an iMac. At the time I didn't even have time to check which MAC went to which device, and it hasn't recurred so I haven't bothered digging into it.
It's a "feature" and part of the Bonjour Sleep Proxy.
http://support.apple.com/kb/HT3774
Also:
https://discussions.apple.com/thread/2160614
http://blog.martinshouse.com/2009/11/apple-time-capsule-steals-ip-addresses.html?m=1
http://en.usenet.digipedia.org/thread/16243/200/Ha! That makes sense.
I have bonjour enable on my nas and thats the IP of the nas.Thanks.
-
@cmb:
Do you have a Time Capsule or AirPort Extreme to go with the AppleTV? If so, that is, unfortunately, normal.
Wow, really? Why's that? Odd that effectively the symptoms of an IP conflict would be normal, but I recall seeing that once on my home network also between two Apple vendor MACs. Don't have a time capsule or AirPort Extreme, have 2 Apple TVs, a couple iPhones, couple iPads, couple MacBook Pros, and an iMac. At the time I didn't even have time to check which MAC went to which device, and it hasn't recurred so I haven't bothered digging into it.
It's a "feature" and part of the Bonjour Sleep Proxy.
http://support.apple.com/kb/HT3774
Also:
https://discussions.apple.com/thread/2160614
http://blog.martinshouse.com/2009/11/apple-time-capsule-steals-ip-addresses.html?m=1
http://en.usenet.digipedia.org/thread/16243/200/If we disable the sleep proxy "feature" on all the MACs will the errors go away?
-
If you just want those messages not to appear in the log add the system tunable "net.link.ether.inet.log_arp_movements" and set its value to 0.
-
If we disable the sleep proxy "feature" on all the MACs will the errors go away?
No. The issue is with the TC and AE, not the Macs, and you can't disable that feature on them.
If you just want those messages not to appear in the log add the system tunable "net.link.ether.inet.log_arp_movements" and set its value to 0.
I actually think the Suppress ARP messages setting will do it as well. If memory serves I didn't add a manual tunable.
-
I actually think the Suppress ARP messages setting will do it as well. If memory serves I didn't add a manual tunable.
Yes it sets the same tunable and also net.link.ether.inet.log_arp_wrong_iface="0" .
-
This is happening on my Home Server as well.. I have 2 Gigabit Ethernet ports that are teamed to a single connection.
Feb 5 12:33:22
kernel: arp: 10.1.1.5 moved from 00:e0:81:ba:57:c4 to 00:e0:81:ba:57:c5 on em0
Feb 5 12:33:22
kernel: arp: 10.1.1.5 moved from 00:e0:81:ba:57:c5 to 00:e0:81:ba:57:c4 on em0
Will this create an issue? It seems to be working ok
-
This is happening on my Home Server as well.. I have 2 Gigabit Ethernet ports that are teamed to a single connection.
Feb 5 12:33:22
kernel: arp: 10.1.1.5 moved from 00:e0:81:ba:57:c4 to 00:e0:81:ba:57:c5 on em0
Feb 5 12:33:22
kernel: arp: 10.1.1.5 moved from 00:e0:81:ba:57:c5 to 00:e0:81:ba:57:c4 on em0
Will this create an issue? It seems to be working ok
That's a different scenario, that's what you see when using certain types of NIC bonding. It's fine.
-
If we disable the sleep proxy "feature" on all the MACs will the errors go away?
No. The issue is with the TC and AE, not the Macs, and you can't disable that feature on them.
If you just want those messages not to appear in the log add the system tunable "net.link.ether.inet.log_arp_movements" and set its value to 0.
I actually think the Suppress ARP messages setting will do it as well. If memory serves I didn't add a manual tunable.
I don't have any Time Capsule or Airport Express. Only Apple TV, 2x MacBook that are here sometimes and probably a few PCs with iTunes installed, if that matters.
But I still get the errors in the pfSense log.
-
I don't have any Time Capsule or Airport Express. Only Apple TV, 2x MacBook that are here sometimes and probably a few PCs with iTunes installed, if that matters.
But I still get the errors in the pfSense log.
You don't need either of those, anything with the sleep proxy does it.
-
isnt this arp moved thing related to using wifi repeaters?
-
isnt this arp moved thing related to using wifi repeaters?
Most often, no. It can be. Some of them will translate the source MAC, which if someone roams from one wifi repeater to another will generate this kind of log.
-
if so then wouldnt it cause issues with internet drops when a static dhcp lease is set with static arp for a client wifi mac id
-
if so then wouldnt it cause issues with internet drops when a static dhcp lease is set with static arp for a client wifi mac id
It shouldn't. The DHCP requests should be relayed so the DHCP server still gets the client's actual MAC. Otherwise only one client behind the repeater would work on DHCP.
-
well i have a problem with the same, i have bridged lan to wifi on pfsense and static mac id/ip pairs set with static arp and deny unknown client ticked, i use a tp link TL-WA850RE wifi range entender and wifi clients get the proper ip but with staic arp wifi clients r not able to surf at all untill i untick that, any solution to this