bidirectional traffic on a Maraki MS250-48FP

[gnussbaum]

Hello,

We are deploying an appliance that required mirrored ports on our Meraki MS250-48FP.  I created a source and destination mirror.  The company that provided the appliance is saying that they are only seeing unidirectional flows.

How can 

[Flavio Miranda]

@gnussbaum 

Are you by any chance using aggreged port for destination? 

"Note: The MS switch supports utilizing aggregate ports as a source port only (not as a destination port)."

Packet Captures and Port Mirroring on the MS Switch - Cisco Meraki Documentation

[gnussbaum]

Hi,

The two ports are not configured as aggregate ports. They are two access ports with one as the source and the other as a destination.

[Flavio Miranda]

Put a PC on the source port and another in the destination port and run wireshark on the PC in the destination port. You can check (and prove) that the config is fine. 

[gnussbaum · Accepted solution]

Thanks Flavio.  I talked with the company that sent us the sensor.  It needs to be attached to the switch that the firewall connects to, which isn't the switch I mentioned.