Výpis paketu Echo-reply při striktním explicitním směrování(strict source routing) na zdrojovém počítači (nezadány všechny směrovače):
No. Time Source Destination Protocol Info 18 10.669794 192.168.1.2 192.168.1.1 ICMP Destination unreachable (Source route failed) Frame 18 (86 bytes on wire, 86 bytes captured) Arrival Time: May 25, 2005 16:49:33.824911000 Time delta from previous packet: 0.000491000 seconds Time since reference or first frame: 10.669794000 seconds Frame Number: 18 Packet Length: 86 bytes Capture Length: 86 bytes Protocols in frame: eth:ip:icmp:ip:icmp:data Ethernet II, Src: 00:c0:26:b6:24:f1, Dst: 00:90:f5:2a:8b:82 Destination: 00:90:f5:2a:8b:82 (Clevo_2a:8b:82) Source: 00:c0:26:b6:24:f1 (LansTech_b6:24:f1) Type: IP (0x0800) Internet Protocol, Src Addr: 192.168.1.2 (192.168.1.2), Dst Addr: 192.168.1.1 (192.168.1.1) Version: 4 Header length: 20 bytes Differentiated Services Field: 0xc0 (DSCP 0x30: Class Selector 6; ECN: 0x00) 1100 00.. = Differentiated Services Codepoint: Class Selector 6 (0x30) .... ..0. = ECN-Capable Transport (ECT): 0 .... ...0 = ECN-CE: 0 Total Length: 72 Identification: 0xd729 (55081) Flags: 0x00 0... = Reserved bit: Not set .0.. = Don't fragment: Not set ..0. = More fragments: Not set Fragment offset: 0 Time to live: 64 Protocol: ICMP (0x01) Header checksum: 0x1f78 (correct) Source: 192.168.1.2 (192.168.1.2) Destination: 192.168.1.1 (192.168.1.1) Internet Control Message Protocol Type: 3 (Destination unreachable) Code: 5 (Source route failed) Checksum: 0xfcfa (correct) Internet Protocol, Src Addr: 192.168.1.1 (192.168.1.1), Dst Addr: 192.168.1.2 (192.168.1.2) Version: 4 Header length: 28 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: 44 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: 0x36d4 (correct) Source: 192.168.1.1 (192.168.1.1) Destination: 192.168.1.2 (192.168.1.2) Options: (8 bytes) NOP Strict source route (7 bytes) Pointer: 4 192.168.3.1 <- (current) Internet Control Message Protocol Type: 8 (Echo (ping) request) Code: 0 Checksum: 0xfc61 (correct) Identifier: 0x8d1a Sequence number: 0x0000 Data (8 bytes) 0000 9d ac 94 42 30 94 0c 00 ...B0...