I have a 2800 Series router and I will be using it to replace an older 2600 series router that does nothing but route a T1 to the Firewall. The T1 connection is through a serial WIC/T1 card and the T1 is terminated through an Adtran unit.
I also have another 1600 series router that connects the LAN to a remote office via a private line connected to the router via a serial WIC/T1 Card.
Separately both of these connections are very easy to configure and route within the LAN.
My Question is this....
How can I combine both of the connections into the one external router, and guarantee that the Private line is secure from the internet line??