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TheFirewallGuy

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I just upgraded to Kerio Control 8.3.0 and when I look in the "Hosts" log, I see the following 2 entries repeated every 5 - 30 seconds:

[26/Apr/2014 14:13:17] [IPv4] X.X.X.X [MAC] YY-YY-YY-YY-YY-01 (Company Name 1) [Hostname] MyPC - MAC address changed from YY-YY-YY-YY-YY-02

[26/Apr/2014 14:13:33] [IPv4] X.X.X.X [MAC] YY-YY-YY-YY-YY-02 (Company Name 2) [Hostname] MyPC - MAC address changed from YY-YY-YY-YY-YY-01

The IPv4 address and Hostname are always the same (and correct for MyPC which located on the local trusted network). MAC address YY-YY-YY-YY-YY-01 is the correct one for MyPC and YY-YY-YY-YY-YY-02 is the MAC address of the Internet Interface on the Kerio Control Machine (which is a dedicated machine running the Software Appliance).

Any ideas why this is happening? I have some outside traffic that gets forwarded to MyPC and that DOES appear to be working.
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TheFirewallGuy

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Update: I now have a different computer on the network that is logging a MAC address change from its actual MAC address to the same Internet Interface MAC address mentioned above. The original computer mentioned above is also still report the same MAC address changes (every 5-30 seconds). The new additional computer doesn't seem to do it as often.
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TheFirewallGuy

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So no one else sees this same issue??? The "Hosts" log would actually be very useful if it wasn't for all of these excessive MAC address change log entries.
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rjokl

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Will be fixed in Control 8.3.1 soon.

Regards,
Roman Jokl
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TheFirewallGuy

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Thanks for the feedback.
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gskibum

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I have Kerio Control 8.3.3 and my Host log file is flooded with these messages.
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TheFirewallGuy

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Version 8.3.1 did fix the problem for me. I am currently running 8.3.3 and the Host log still appears to be behaving/logging normally.
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surjikoff

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version 8.3.4 build 2461 spam spam spam... How stop it?
in DC Server 2012 R2 with 2 net adapter with NIC Teaming

[18/Sep/2014 14:50:21] [IPv4] 192.168.1.2 [MAC] 00-1e-67-ac-bf-ac (Intel Corporate) [Hostname] dc.loc [User] DC - MAC address changed from 00-1e-67-ac-bf-ab
[18/Sep/2014 14:50:21] [IPv4] 192.168.1.2 [MAC] 00-1e-67-ac-bf-ab (Intel Corporate) [Hostname] dc.loc [User] DC - MAC address changed from 00-1e-67-ac-bf-ac
[18/Sep/2014 14:50:23] [IPv4] 192.168.1.2 [MAC] 00-1e-67-ac-bf-ac (Intel Corporate) [Hostname] dc.loc [User] DC - MAC address changed from 00-1e-67-ac-bf-ab
[18/Sep/2014 14:50:24] [IPv4] 192.168.1.2 [MAC] 00-1e-67-ac-bf-ab (Intel Corporate) [Hostname] dc.loc [User] DC - MAC address changed from 00-1e-67-ac-bf-ac
[18/Sep/2014 14:50:25] [IPv4] 192.168.1.2 [MAC] 00-1e-67-ac-bf-ac (Intel Corporate) [Hostname] dc.loc [User] DC - MAC address changed from 00-1e-67-ac-bf-ab
[18/Sep/2014 14:50:26] [IPv4] 192.168.1.2 [MAC] 00-1e-67-ac-bf-ab (Intel Corporate) [Hostname] dc.loc [User] DC - MAC address changed from 00-1e-67-ac-bf-ac
[18/Sep/2014 14:50:28] [IPv4] 192.168.1.2 [MAC] 00-1e-67-ac-bf-ac (Intel Corporate) [Hostname] dc.loc [User] DC - MAC address changed from 00-1e-67-ac-bf-ab
[18/Sep/2014 14:50:29] [IPv4] 192.168.1.2 [MAC] 00-1e-67-ac-bf-ab (Intel Corporate) [Hostname] dc.loc [User] DC - MAC address changed from 00-1e-67-ac-bf-ac
[18/Sep/2014 14:50:29] [IPv4] 192.168.1.2 [MAC] 00-1e-67-ac-bf-ac (Intel Corporate) [Hostname] dc.loc [User] DC - MAC address changed from 00-1e-67-ac-bf-ab
[18/Sep/2014 14:50:30] [IPv4] 192.168.1.2 [MAC] 00-1e-67-ac-bf-ab (Intel Corporate) [Hostname] dc.loc [User] DC - MAC address changed from 00-1e-67-ac-bf-ac
[18/Sep/2014 14:50:30] [IPv4] 192.168.1.2 [MAC] 00-1e-67-ac-bf-ac (Intel Corporate) [Hostname] dc.loc [User] DC - MAC address changed from 00-1e-67-ac-bf-ab
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gskibum

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Yep I also still have this with 8.3.4.
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SergKLP

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The same problem for me with Kerio Control 8.3.4 clean install.
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surjikoff

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Solved! Smile But first, answer from support - Turn off NIC Teaming. lol

Install Hyper-V, in nic teaming setting (load balancing mode) select hyper-v port it's work ok. In net adapner hyper-v setting, change mac address if you need.

[Updated on: Mon, 20 October 2014 10:50]

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SergKLP

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Hyper-V? i have this problem with Kerio Control running on native Linux without virtualization. Smile
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surjikoff

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I have DC in windows 2012 R2 and kerio control at lynux on standalone server. DC in nic teaming spaming mac adress changes. With hiper-v all ok.
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rjokl

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This issue will be fixed in Kerio Control 8.4.1
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