Thanks Justin, just found this bug: CSCsz48766 

Following the workaround instruction on the bug detail page. 

David Wang, Networking Services, CCS
www.uoguelph.ca 519-824-4120 x52046
facetime://[email protected]





On 2010-11-29, at 9:38 AM, Justin Odom wrote:

> It's VLAN detection. In 4.7.2 it is ARP based instead of ICMP. This causes an 
> issue as its clearing the arp table entry for the default gw and causing 
> anyconnect to drop. 
> 
> You can either upgrade to the 4.8.0 agent or disable VLAN detect if you don't 
> need it.
> From: David Wang <[email protected]>
> Sender: Cisco Clean Access Users and Administrators 
> <[email protected]>
> Date: Mon, 29 Nov 2010 09:16:56 -0500
> To: <[email protected]>
> ReplyTo: Cisco Clean Access Users and Administrators 
> <[email protected]>
> Subject: Cisco NAC Agent with AnyConnect client 2.4 or 2.5 on Mac
> 
> Need some help here. 
> 
> We are running Cisco NAC 4.7.2 with Agent for Mac 4.7.2.507. Some users also 
> run Cisco AnyConnect vpn client version 2.4 / 2.5. It appears the Anyconnect 
> vpn client keeping connecting and disconnecting after some time on these Mac 
> machines. Just wondering if anyone else having the similar issue? 
> 
> thanks in advance. 
> 
> David Wang, Networking Services, CCS
> www.uoguelph.ca 519-824-4120 x52046
> facetime://[email protected]
> 
> 
> 
> 
> 

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