Why do I see all traffic with wireshark when I am using VLAN
Posted: 08 Oct 2008 17:29
Hello all, I am not sure if this is an issue for the 9700 but while looking on my network with wireshark I am seeing all of the traffic on the switch, this is happening when I mirror a port that has an IP phone with a PC behind it.
Example:
Vlan 1 is the default vlan on port 1/20
Vlan 20 is the VOIP vlan that is Qtagged on port 1/20
When I mirror port 1/20 or any other that has the same configuration I can see the entire network which would tell me that if this is happening then can that cause quality issues with the VOIP system (OXE R8.0 with 150 4038's) or would this be normal.
Thanks,
Example:
Vlan 1 is the default vlan on port 1/20
Vlan 20 is the VOIP vlan that is Qtagged on port 1/20
When I mirror port 1/20 or any other that has the same configuration I can see the entire network which would tell me that if this is happening then can that cause quality issues with the VOIP system (OXE R8.0 with 150 4038's) or would this be normal.
Thanks,