ASA firewall basic configuration
ciscoasa(config)# hostname ASA1
ASA1(config)# interface gi0
ASA1(config-if)# nameif outside
INFO: Security level for "outside" set to 0 by default.
ASA1(config-if)# ip address 10.1.1.1 255.255.255.0
ASA1(config-if)# no shut
ASA1(config-if)# ping 10.1.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 10/18/50 ms
ASA1(config-if)# interface gi1
ASA1(config-if)# nameif inside
INFO: Security level for "inside" set to 100 by default.
ASA1(config-if)# ip address 192.168.1.1 255.255.255.0
ASA1(config-if)# no shut
ASA1(config-if)# ping 192.168.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 10/20/60 ms
ASA1(config-if)# interface gi2
ASA1(config-if)# nameif DMZ
INFO: Security level for "DMZ" set to 0 by default.
ASA1(config-if)# security-level 50
ASA1(config-if)# ip address 172.16.1.1 255.255.255.0
ASA1(config-if)# no shut
ASA1(config-if)# ping 172.16.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to172.16.1.1 timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 10/16/40 ms
ASA1(config-if)# wr
Building configuration...
Cryptochecksum: d785382c b71ac6aa 74d5b0f8 0a2ef12d