I have Access Point which is connecting to VPN and create internal WiFi network of our company everywhere. Now I need to inspect what protocol for VPN is this AP using. I am not able to configure it, so I need to inspect this from packets which is AP sending outside. I would like to run something like wireshark on this AP and watching for outgoing traffic, but it is not so easy and I am not sure how can I do it. I was thinking about something like that - I can connect my PC to WAN port of this AP, and maybe I can run wireshark on PC, and I will see, what AP is trying to send to our VPN servers? Is this approach correct, or I need to do something different?
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Most easy way would be to configure a monitoring session on a switch the AP is connected to, to send all the traffic to another port or vlan, where you can sniff it with a wireshark.
Check how this is done on Cisco Catalyst switches: configuring monitoring sessions on Catalyst switches
Similar technology applies to all other managed switches, but the configuration process depends on the vendor software.

drookie
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