MAC address problem

[elma7mo]

Salaaaaaaaaaaaaam,
i have small Q .. how come same mac address go to two deffernet VLAN .. keep in mind that VLan 100 is the voice VLAN and the other one is the data VLAN .. AM running POE switch which connects to the ip phone and from the ip phone to the PC .. all other port and normal


Vlan Mac Address Type Ports
---- ----------- -------- -----
151 0016.3566.8252 DYNAMIC Fa0/47
151 0019.e803.6600 DYNAMIC Fa0/47
100 0019.e803.6600 DYNAMIC Fa0/47

[ultraviolet2006]

I cant understand your Q please Explain More.

[takiadeen]

Salaaaaaaaaaaaaam,
how come same mac address go to two deffernet VLAN .

you can have one port assigned to the Voice vlan and at the same time to the data vlan.

this is due to the seperation of voice from data so that data system attacks such as ping of death won't effect the voice traffic due to the segregation of the network traffic. .

[elma7mo]

Salam,
my Q is I have two VLAN 100 for voice and 151 for DATA, now when i check show mac-address interface 0/5 i can see that the phone mac address reqestred in both of the VLAN ... I have cleared the arp then it became normal ... my question why this is happing .. when i get the same mac address in both of the VLANS .. is this normal ????