We've upgraded our old Custom Built Linux Router (ipTables) to a Router on a Stick model using a Netgear SRX5308. The old Linux router had 6 NICs as gateways for our 6 Subnetworks. 5 were on our LAN while the last one connected up to the internet. This router handled crossing traffic between networks and worked fine.
The new setup is the Netgear Router with 6 VLANs set up on it with gateway IPs. We've enabled intervlan routing to enable this router to route traffic between the VLANs.
Problem is, we are experiencing significant network degradation by going to the new model. Because of our problems Netgear gave us a completely new one, but, I still have my doubts that this will cope.
This is the device here:
Can someone tell me whether this device is ideal to handle a network of our size? We have 6 different VLANs. One for servers, one for wireless, one for our DMZ, and the other 3 for segmenting our network. As you can see, intervlan routing is critical to get everything talking to each other. We've got about 20 servers and 400 network clients (computers, printers, IP cameras etc).
Any advice would be much appreciated.