Subneting Lan to go out 2 external internet interfaces
I have a local network on which I have about 30 desktop clients and 5 servers including a mail server and 2 citrix servers that of course need to be accessed from the outside world.
I have 2 internet connections and I would like to use 1 firewall and place everything behind it, subnet the LAN into 2 groups and basically pass all the traffic from the client out one interface and the traffic for the servers out the other faster interface.
Of course to top the complexity of this the 3 main servers each need to have it's own real world address mapped to the inside, along with the appropriate ports for the services they provide.
I'm not seeing any good examples out there that do something like this. Does anyone have/seen an example I can start with or know of any good programs that can generate a script like this?