Frames captured at 192.168.1.120 (00:00:39:fb:36:c2) upon doing:
>ping 192.168.1.11

*********************************************************************
Frame: 42 bytes   ARP broadcast  from .120

Ethernet: 14B [Preamble, SFD, FCS not shown]    
*   Destination: Broadcast (ff:ff:ff:ff:ff:ff)
    Source:  00:00:39:fb:36:c2
*   Type: ARP (0x0806)

Address Resolution Protocol (Request)  {in the frame's Data field}
    Hardware type: Ethernet (0x0001)
    Protocol type: IP (0x0800)
    Hardware size: 6
    Protocol size: 4
*   Opcode: request (0x0001)
    Sender MAC address: 00:00:39:fb:36:c2
    Sender IP address: 192.168.1.120 
    Target MAC address: 00:00:00_00:00:00 
*   Target IP address: 192.168.1.11               "Who is 192.168.1.11?"

*********************************************************************
Frame: 60 bytes   ARP response  from .11

Ethernet:
*   Destination: 00:00:39:fb:36:c2
*   Source:      00:08:74:fd:ac:a7          
*   Type: ARP (0x0806)
    Trailer: 000000000000000000000000000000000000  [???]

Address Resolution Protocol (Reply)
    Hardware type: Ethernet (0x0001)
    Protocol type: IP (0x0800)
    Hardware size: 6
    Protocol size: 4
    Opcode: reply (0x0002)
*   Sender MAC address: 00:08:74:fd:ac:a7   "this is my MAC address"
    Sender IP address: 192.168.1.11
    Target MAC address: 00:00:39:fb:36:c2
    Target IP address: 192.168.1.120

*********************************************************************
Frame: 74 bytes   Now the first ping from .120 to .11   ICMP Echo Request

Ethernet:
    Destination: 00:08:74:fd:ac:a7
    Source:      00:00:39:fb:36:c2
*   Type: IP (0x0800)

Internet Protocol:     [in the frame's Data field]
    Version: 4
    Header length: 20 bytes
    Differentiated Services Field: 0x00 
    Total Length: 60
    Identification: 0x0324 (804)
    Flags: 0x00
    Fragment offset: 0
    Time to live: 128
*   Protocol: ICMP (1)
    Header checksum: 0xb3c9 {correct}
*   Source: 192.168.1.120 
*   Destination: 192.168.1.11 

Internet Control Message Protocol:    {in IP packet's Data field}
*   Type: 8 (Echo (ping) request)
*   Code: 0
    Checksum: 0x1e5c {corret}

    Identifier: 0x0200                {in ICMP's Data field}
    Sequence number: 11520 (0x2d00)
    Data (32 bytes)       
      abcdefghijklmnopqrstuvwabcdefghi     {dummy data}

*********************************************************************
Frame: 74 bytes     Return the   ICMP Echo Reply  to .120

Ethernet:
    Destination: 00:00:39:fb:36:c2
    Source:      00:08:74:fd:ac:a7
*   Type: IP (0x0800)

Internet Protocol:
    Version: 4
    Header length: 20 bytes
    Differentiated Services Field: 0x00
    Total Length: 60
    Identification: 0x09cf (2511)
    Flags: 0x00
    Fragment offset: 0
    Time to live: 128
*   Protocol: ICMP (1)
    Header checksum: 0xad1e {correct}
*   Source: 192.168.1.11 
*   Destination: 192.168.1.120 

Internet Control Message Protocol:
*   Type: 0 (Echo (ping) reply)
*   Code: 0
    Checksum: 0x265c {correct}

    Identifier: 0x0200
    Sequence number: 11520 (0x2d00)
    Data (32 bytes)
      abcdefghijklmnopqrstuvwabcdefghi     {return that dummy data?}