Here is an example:
Example 2-2 Two Interfaces with NAT
nameif ethernet0 outside security0
nameif ethernet1 inside security100
interface ethernet0 10baset
interface ethernet1 10baset
ip address outside 209.165.201.3 255.255.255.224
ip address inside 192.168.3.0 255.255.255.0
hostname pixfirewall
arp timeout 14400
no failover
names
pager lines 24
logging buffered debugging
nat (inside) 1 0 0
global (outside) 1 209.165.201.10-209.165.201.30
global (outside) 1 209.165.201.8
route outside 0.0.0.0 0.0.0.0 209.165.201.1 1
access-list acl_out permit icmp any any
access-group acl_out in interface outside
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00
udp 0:02:00 rpc 0:10:00 h323 0:05:00
sip 0:30:00 sip_media 0:02:00
timeout uauth 0:05:00 absolute
no snmp-server location
no snmp-server contact
snmp-server community public
mtu outside 1500
mtu inside 1500
Full documentation for this example, including network diagram,coule be found at the following link: