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I have the following NAT:<br />
<br />
global (outside) 1 interface<br />
nat (inside) 1 192.168.1.0 255.255.255.0<br />
<br />
nat (outside) 1 192.168.20.0 255.255.255.0<br />
<br />
nat (finance) 1 12.12.12.12 255.255.255.248<br />
nat (hr) 1 192.168.30.0 255.255.255.0<br />
<br />
inside is int gig0/1. Finance is int gig0/2.2. HR is int gig0/2.3.<br />
Does it meant that inside, finance, and hr will be natted or PAT to the global(outside) interface? how about nat(outside)
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I have the following NAT:

global (outside) 1 interface
nat (inside) 1 192.168.1.0 255.255.255.0

nat (outside) 1 192.168.20.0 255.255.255.0

nat (finance) 1 12.12.12.12 255.255.255.248
nat (hr) 1 192.168.30.0 255.255.255.0

inside is int gig0/1. Finance is int gig0/2.2. HR is int gig0/2.3.
Does it meant that inside, finance, and hr will be natted or PAT to the global(outside) interface? how about nat(outside)

Cisco ASA 5510 NAT with several internal interfaces

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

Network security consists of the policies adopted to prevent and monitor authorized access, misuse, modification, or denial of a computer network and network-accessible resources. Network security involves the authorization of access to data in a network, and covers a variety of computer networks; conducting transactions and communications among businesses, government agencies and individuals. Networks can be private, such as within a company, and others which might be open to public access.

Network Security

Networking hardware includes the physical devices facilitating the use of a computer network. Typically, networking hardware includes gateways, routers, network bridges, modems, wireless access points, networking cables, line drivers, switches, hubs, and repeaters. But it also includes hybrid network devices such as multilayer switches, protocol converters, bridge routers, proxy servers, firewalls, network address translators, multiplexers, network interface controllers, wireless network interface controllers, ISDN terminal adapters and other related hardware.