PC01    -->  PC02   -->  PC03   -->   ASA     --> PC04
1.1.1.1 --> 1.1.1.2
        --> 2.2.2.2 --> 2.2.2.3
                    --> 3.3.3.3 --> 3.3.3.254
                                    4.4.4.254 --> 4.4.4.4

access-list INS extended permit ip any any
access-list OUT extended permit ip any any
access-group OUT in interface outside
access-group INS in interface inside

ciscoasa# sh log
Syslog logging: enabled
    Facility: 20
    Timestamp logging: enabled
    Standby logging: disabled
    Deny Conn when Queue Full: disabled
    Console logging: disabled
    Monitor logging: level alerts, 0 messages logged
    Buffer logging: level informational, 230 messages logged
    Trap logging: level informational, facility 20, 230 messages logged
    History logging: level informational, 230 messages logged
    Device ID: 'inside' interface IP address "3.3.3.254"
    Mail logging: disabled
    ASDM logging: level informational, 230 messages logged
Nov 30 1999 01:26:04 3.3.3.254 : %ASA-5-111008: User 'enable_15' executed the 'clear logging buffer' command.
Nov 30 1999 01:26:15 3.3.3.254 : %ASA-6-302020: Built inbound ICMP connection for faddr 1.1.1.1/56584 gaddr 4.4.4.4/0 laddr 4.4.4.4/0
Nov 30 1999 01:26:38 3.3.3.254 : %ASA-6-302021: Teardown ICMP connection for faddr 1.1.1.1/56584 gaddr 4.4.4.4/0 laddr 4.4.4.4/0
ciscoasa#

ciscoasa# sh int e0/1 | i MAC
        MAC address 0000.0000.7801, MTU 1500
ciscoasa#
ciscoasa# sh int e0/0 | i MAC
        MAC address 0000.0000.7800, MTU 1500
ciscoasa#
ciscoasa# sh cap ci
5 packets captured
   1: 01:05:27.509128 1.1.1.1 > 4.4.4.4: icmp: echo request
   2: 01:05:28.617109 1.1.1.1 > 4.4.4.4: icmp: echo request
   3: 01:05:29.509083 1.1.1.1 > 4.4.4.4: icmp: echo request
   4: 01:05:32.497029 arp who-has 3.3.3.254 tell 3.3.3.3
   5: 01:05:32.497029 arp reply 3.3.3.254 is-at 0:0:0:0:78:1
5 packets shown
ciscoasa#
ciscoasa# sh cap co
5 packets captured
   1: 01:05:27.509128 1.1.1.1 > 4.4.4.4: icmp: echo request
   2: 01:05:28.617109 1.1.1.1 > 4.4.4.4: icmp: echo request
   3: 01:05:29.509083 1.1.1.1 > 4.4.4.4: icmp: echo request
   4: 01:05:32.497029 arp who-has 3.3.3.254 tell 3.3.3.3
   5: 01:05:32.497029 arp reply 3.3.3.254 is-at 0:0:0:0:78:1
5 packets shown
ciscoasa#