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RV120W or RV220W or SA500 doing NAT overload to Internet. Lan subnets connected to SF300 / SG300 Layer 3 Switch

Hi,

Im wondering if it´s possible to have the following topology using a Cisco SF300 L3 Switch and a RV120W or RV220W or SA500 as a Gateway with NAT OVERLOAD for all the IP subnets (10.0.10.0/24, 10.0.20.0/24, 10.0.30.0/24) .  Im designing a solution and want to know if someone had an experience with this topology. If RV120W or 220W or SA500 can´t do this , could you please recommend a router that can (better if its  small business router) or Fortinet .

The point is that I want the L3 switch to perform the INTER-VLAN Routing and the router to perform NAT (overload) for all subnets (I just have 1 public IP address from my ISP).

The gateway for VLAN 10, 20 and 30 is L3 Switch and it would have a default route pointing to the router.  The router will have routes to subnets via L3 Switch.

I have done this  with a Catalyst 3560 and a Cisco ISR 1841 and it works , but now I have to implement it on a limited budget scheme.

I´d like to know if RV120W and RV220W can do the NAT  overload translation for the packets received with source from subnets on vlan 10,20, 30 (10.0.10.0/24, 10.0.20.0/24, 10.0.30.0/24) and destined to the Internet.

Note, the gateway for the subnets is the L3 Switch,  the router is connected to an access port of the L3 switch on a different vlan/subnet.

Thanks in advance for your assistance and advise

Have a great day.

Christian Castillo

http://promotechmexico.com.mx

Diagrama L3Switching y Nat Router.png

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