We have a network with 2 cisco 4506 switches and 20 cisco 2950 switches. Recently we activated vmps and everything works fine except a wake on lan problem. When a pc that is connected to a port in dynamic mode and the pc is turned off, the port goes into a unassigned vlan and doesn't receive the wake on lan packet.
VMPS and the "Wake On Lan" (WOL) card feature are not compatible.
The main reason ist he the fact that a unused port does not belong to any VLAN. As soon as the switch clears the entry from the CAM table due to PC inactivity, the dynamic port gets to the unassigned state. The PC can not be woken up anymore since no 'wake up' packet can get thru the port as the port is no longer assigned to a VLAN so the "Wake on LAN" frame will not be unicast flooded out the switch port. The port does not belong to any VLAN and will not forward any unknown unicast, broadcast or multicast. The only workaround here is to change the port to static membership on ports with a WOL card attached.
If you had a CAT 6500 running 8.3(x), we have 802.1X Unidirectional Controlled Port feature.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.