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I have a Cisco 3640 with two T1 lines and two internal networks. &nbsp;How can I have one internal network use one of the t1's and the other internal network use the other?
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I have a Cisco 3640 with two T1 lines and two internal networks.  How can I have one internal network use one of the t1's and the other internal network use the other?

How do I route traffic with two ISP T1's and two internal networks?

A router is a networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. The most familiar type of routers are home and small office cable or DSL routers that simply pass data, such as web pages, email, IM, and videos between computers and the Internet. More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common.