Not able to communicate between the VLANS on SG300-10

Please take a look at my crude drawing of how I want my network to work:

SG300-10
__________________________________________
| 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
|_|___|__________________________________|
|   |_________________________________
|_________________                   |
__________________  _______|_________  _______|_________
|-VLAN 1-|  | - VLAN 10-|  | - VLAN 20-|
|   Management |  | 192.168.10.1 |  | 192.168.20.1.
| 192.168.1.250 |  |               |  |               |
|________________|  | Internet router |  |   Devices.
| 192.168.10.2.  | Box of physics |
|_______________|  | 192.168.20.2 |
| Server 2008R2.
| DNS, DHCP, AD DC |
|               |
| Physical boxes |
| 192.168.20.x |
| W7 Workstations |
|_______________|

I put a static IP address on the server 2008R2 host and Internet router.  I have configured my VLAN and I put each VLAN IP (as shown above), I put a 0.0.0.0 route to the Internet router, but also routes for each range of IP VLAN x.x.x.0 and I put the gateway on all host on VLAN 20 to be 192.168.20.1.

I'm unable to access the Internet, ping the router or access the webpage switch management of any host on VLAN 20 unless I manually set the IP address on the host VLAN 20 on the same IP range as the machine I'm trying to get. As such:

If I manually set the IP host address to 192.168.1.50, I can access the administration of the switch, but then not RDP in or ping any host on VLAN 20 or ping the router Internet on VLAN 10.

If I manually set the IP host address to 192.168.10.50, I can ping the router Internet but cannot RDP into or ping any device on VLAN 20, nor can I access the Switch Management page.

If I let DHCP assign the IP 192.168.20.5, I can RDP in and ping all devices VLAN 20, but I can't ping all devices on VLAN 10 or access the administration of the switch to VLAN 1.

I know I'm missing something simple, and I worked on it for about 30 hours now but can't seem to get this to work. Someone could possibly help?  Thanks in advance.

Just to be sure, is the SG300 mode switching L3 / L2 switching?

Tags: Cisco Support

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