topic NAC & ip-address changing issue in Network Security https://community.cisco.com/t5/network-security/nac-ip-address-changing-issue/m-p/952516#M794602 <P>Hello, all.</P><P>I've noticed an interesting behavior of the Windows clients.</P><P>We have NAC OOB L3 deployment + ip-telephony. Workstations are behind ip-phones (cisco). Users do not have administrator privileges on their PCs.</P><P>When the user is authenticated the switch port changes its vlan from authentication to access. And indifferent do we use ActiveX applet or CAA agent, the user gets an error telling that the ip-address can not be changed though the port is already in the access vlan.</P><P>How this issue can be resolved?</P><P>I have not found any solutions at cisco.com</P><P></P><P>The only decision that I have for today is to decrease lease time on dhcp servers to several minutes.</P><P></P><P>Any other ideas?</P><P></P><P>Regards,</P> Fri, 21 Feb 2020 09:57:25 GMT dosic 2020-02-21T09:57:25Z NAC & ip-address changing issue https://community.cisco.com/t5/network-security/nac-ip-address-changing-issue/m-p/952516#M794602 <P>Hello, all.</P><P>I've noticed an interesting behavior of the Windows clients.</P><P>We have NAC OOB L3 deployment + ip-telephony. Workstations are behind ip-phones (cisco). Users do not have administrator privileges on their PCs.</P><P>When the user is authenticated the switch port changes its vlan from authentication to access. And indifferent do we use ActiveX applet or CAA agent, the user gets an error telling that the ip-address can not be changed though the port is already in the access vlan.</P><P>How this issue can be resolved?</P><P>I have not found any solutions at cisco.com</P><P></P><P>The only decision that I have for today is to decrease lease time on dhcp servers to several minutes.</P><P></P><P>Any other ideas?</P><P></P><P>Regards,</P> Fri, 21 Feb 2020 09:57:25 GMT https://community.cisco.com/t5/network-security/nac-ip-address-changing-issue/m-p/952516#M794602 dosic 2020-02-21T09:57:25Z Re: NAC & ip-address changing issue https://community.cisco.com/t5/network-security/nac-ip-address-changing-issue/m-p/952517#M794608 <HTML><HEAD></HEAD><BODY><P>varnavsky, are you doing real-ip or vg?</P></BODY></HTML> Tue, 01 Apr 2008 22:01:27 GMT https://community.cisco.com/t5/network-security/nac-ip-address-changing-issue/m-p/952517#M794608 jvr775 2008-04-01T22:01:27Z Re: NAC & ip-address changing issue https://community.cisco.com/t5/network-security/nac-ip-address-changing-issue/m-p/952518#M794614 <HTML><HEAD></HEAD><BODY><P>hi, real-ip GW</P></BODY></HTML> Wed, 02 Apr 2008 06:14:22 GMT https://community.cisco.com/t5/network-security/nac-ip-address-changing-issue/m-p/952518#M794614 dosic 2008-04-02T06:14:22Z