I think that E3200 doesn't support more than one vlan. If your switch is a layer 3 you can configure the port that connects to E3200 as a Layer 3 port and configure and ip address in the same subnet as router. Then on the router you can configure st...

Are the clients running the same OS? Does the core switch do any routing?

Hi Radim, you can have as many as 1000 or you can have only 4 ( 2 connected and 2 static), that depends how the network is subneted and configured.Hope this helpsEugen

A suggestion is try removing "ip default-gateway...." commands and replace them with a default static route on switches.Hope it helpsEugen

Is the link from L2 to Router/Firewall a trunk? I guess from your topology that Vlan 44 goes directly to firewall, and all other vlans goes by L3 switch. If this is correct, your link from L3 G3/1 to firewall should be a trunk, but your G3/1 is confi...