Topologie s CISCO routery

Výpis datagramu s volitelnou položkou striktní explicitní směrování (strict source route). Požadavek zachycený na zdrojovém PC:

No.     Time        Source                Destination           Protocol Info
      1 0.000000    192.168.4.2           192.168.4.1           ICMP     Echo (ping) request 

Frame 1 (66 bytes on wire, 66 bytes captured)
    Arrival Time: Jun  1, 2005 16:47:41.191684000
    Time delta from previous packet: 0.000000000 seconds
    Time since reference or first frame: 0.000000000 seconds
    Frame Number: 1
    Packet Length: 66 bytes
    Capture Length: 66 bytes
    Protocols in frame: eth:ip:icmp:data
Ethernet II, Src: 00:90:f5:2a:8b:82, Dst: 00:30:94:e5:bc:f0
    Destination: 00:30:94:e5:bc:f0 (Cisco_e5:bc:f0)
    Source: 00:90:f5:2a:8b:82 (Clevo_2a:8b:82)
    Type: IP (0x0800)
Internet Protocol, Src Addr: 192.168.4.2 (192.168.4.2), Dst Addr: 192.168.4.1 (192.168.4.1)
    Version: 4
    Header length: 36 bytes
    Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
        0000 00.. = Differentiated Services Codepoint: Default (0x00)
        .... ..0. = ECN-Capable Transport (ECT): 0
        .... ...0 = ECN-CE: 0
    Total Length: 52
    Identification: 0x3372 (13170)
    Flags: 0x00
        0... = Reserved bit: Not set
        .0.. = Don't fragment: Not set
        ..0. = More fragments: Not set
    Fragment offset: 0
    Time to live: 255
    Protocol: ICMP (0x01)
    Header checksum: 0xa276 (correct)
    Source: 192.168.4.2 (192.168.4.2)
    Destination: 192.168.4.1 (192.168.4.1)
    Options: (16 bytes)
        NOP
        Strict source route (15 bytes)
            Pointer: 4
            192.168.1.2 <- (current)
            192.168.2.1
            192.168.3.2
Internet Control Message Protocol
    Type: 8 (Echo (ping) request)
    Code: 0 
    Checksum: 0x3fd5 (correct)
    Identifier: 0x8115
    Sequence number: 0x0000
    Data (8 bytes)

0000  ad e6 9d 42 e9 eb 02 00                           ...B....