ARP Issue

[Robo123]

Hi All,

I have WiFi disconnection issue in my network  .Connectivity as follows.

WLC->L2 SWITCH ->L2 switch-> Checkpoint Fw

In packet capture on the both L2 switch egress port I have seen ARP request is going (who is gateway).but at firewall end which is the gateway for wireless is unable to recognize the end point IP(Asking to gate way who is this end point IP)

What are the possibilities for this issue.

[MHM Cisco World]

But as I know the wlc IP is gw for wireless client.

[Robo123]

But in our setup WLC is L2 and L3 gateway is configured in Firewall and where ARP is getting fail.

[Flavio Miranda]

Hi

 We must have more informaton on this.  It this client connected to a SSID with local switching or central switching ?

And on your topology, wondering if you dont have a Layer3 switch instead 2 Layer2 switches. If all is layer2 then you have interface vlan on the WLC and on the Firewall?

If you can share the config from the WLC and switch, would be great.