Please advise;
On the premises we have one ISP, that gives a small subnet (/28). So we have a netadress (.0), and a router from the ISP within the subnet (.1) and a broadcast (.7). All the other IP's can be used for our own servers and/or routers.
On this moment, we have a switch behind this router of the ISP, and two routers attached. Both routers provide the internetservices for two different networks.
For one of those networks we would like to keep everything as simple as possible in the transfer. So preferable we would keep them on the switch, but to make things somewhat more secure for that network as well, we think transparant mode on a SSG140 would be better.
The other network should be NAT if possible. Since we want to eliminate the router in that network. Is this possible? Should I connect the SSG140 to the Switch with two network-interfaces and make one transparent and one NAT? Or would it also be possible to do it with one connection to the ISP's router?