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I have two Internet connections coming in to my company. &nbsp;One is a T-1, the other DSL. &nbsp;I would like them both protected by the ASA and I would like to use only a single internal subnet. &nbsp;I know I would need the Security-Plus license from Cisco but is this practical and and how hard is it to configure.
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I have two Internet connections coming in to my company.  One is a T-1, the other DSL.  I would like them both protected by the ASA and I would like to use only a single internal subnet.  I know I would need the Security-Plus license from Cisco but is this practical and and how hard is it to configure.

Using the ASA 5505 With Two ISP's

Hardware-based firewalls provide more sophisticated protection for inbound and outbound traffic than the simple Windows software firewall or the basic NAT firewalls found in routers. These devices implement techniques such as stateful packet inspection, deep packet inspection, and content filtering; and may include built-in antivirus and anti-malware protection.

Hardware Firewalls

Cisco PIX is a dedicated hardware firewall appliance; the Cisco Adaptive Security Appliance (ASA) is a firewall and anti-malware security appliance that provides unified threat management and protection the PIX does not. Other Cisco devices and systems include routers, switches, storage networking, wireless and the software and hardware for PIX Firewall Manager (PFM), PIX Device Manager (PDM) and Adaptive Security Device Manager (ASDM).

Cisco

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.