The computer is behind a 7940 ip phone, each directly connected to a
3550 PoE switch. (switched network) they use different vlan
See config on the Access switch
interface FastEthernet0/2 switchport access vlan 20 switchport mode access switchport voice vlan 21 mls qos trust device cisco-phone mls qos trust cos auto qos voip cisco-phone spanning-tree portfast
on the 6500 multilayer switch
mon-rs-01#sh ip int brief Interface IP-Address OK? Method Status Protocol
...(truncated)... Vlan20 10.1.20.2 YES NVRAM up up Vlan21 10.11.20.2 YES NVRAM up up
When launching Ether Real from my computer, and selecting the promiscuous mode options, I see all traffic from the phone devices talking to other phones or other voice application servers. I never had this before, and I should not.
I m wondering it it s not a config somewhere in the ip phone ? wich would work like a hub.
Any ideas ??