The IP telephone and the workstation have the 802.1x authentication configured. In the first it is al is working. The problem is when a disconnected the first workstation that is working and connected a workstation that don't authorized to access the network. The 802.1x is working perfect, as such as, this workstation appers with drop. But when a return the first workstation on the switch its put the port in error-disable with a following msg:"%DOT1X-5-SECURITY_VIOLATION: Security violation on the interface FastEthernet0/1, new MAC address 0016.4179.1592 is seen.
01:32:47: %PM-4-ERR_DISABLE: security-violation error detected on Fa0/1, putting Fa0/1 in err-disable state, and communication with the IP phone and workstation.
Ensure that the interface is configured to support the number of attached hosts. Enter the shutdown interface configuration command and then the no shutdown interface configuration command to restart the port.
Cisco IP Phones have a '802.1x Proxy Disconnect' feature that 'snoops' 802.1x messages and will send a 802.1x disconnect to thw switchport oh behalf of the attached (now not attached..) 802.1x supplicant if the PC port is disconnected. This was added a while ago in most IP Phone firmware. Check to see if Avaya have implemented a similar feature, if not then you are a bit stuck. You could drop the timers down however it could get messy...
Thanks for attention. I'll to check with Avaya about the configuration, but a I belive that this is implemented. I'd like to know, based in the configuration tha I show you, how to configure to drop the timers, wich you told me ?
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...