[Ethereal-users] port mirroring disables browsing

["Carte, M Elliot" <mecarte@xxxxxxxxx>]

Sorry if this is a stupid question. I’m using a Dell PowerConnect 2708 and mirroring the uplink port (port 1) to port 8. I then use a laptop on port 8 to monitor traffic on the switch with Ethereal. However, when I do this I can no longer reach the default gateway (access Internet) from the laptop (monitoring port). If I try before I even start Ethereal, I still can’t, so it must be the port mirroring. Does anyone know why this would be? Can you not send and receive your own packets when you’re monitoring another port? Does this happen on other switches, or is it switch-specific? Thanks in advance.

-elliot

 

M. Elliot Carte

UITS - DMNS

office: 317.274.5843

cell: 317.840.1729

mecarte@xxxxxxxxx