Test run at: 2018-04-12 19:42:35 GMT
Client Prefix (v4): 177.137.3.x/24
Client AS (v4): 53240
IPv4 Probes: 102
Outbound spoofing summary (from the client to our server) Source address type IPv4 Private - RFC1918 unknown Routable received Largest spoofable neighbor prefix length /17
Spoof status key received Spoofed packet was received. ✔ Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it. rewritten Spoofed packet was received, but the source address was changed en route. blocked Spoofed packet was not received, but unspoofed packet was. unknown Neither spoofed nor unspoofed packet was received.
This test run probed the following paths in order to infer your ability to send different spoofed source packets. Each node in the graph corresponds to an autonomous system, i.e. different Internet service providers. NOTE: This graph does NOT show if an AS blocks spoofed packets, only the path taken by received spoofed packets. The IP Path Details are available for this run. If non-spoofed packets weren't received at a destination, the traceroute to that destination is not included in this graph and may even cause a totally empty graph.
IPv4 Adjacent Netblock Testing:
Your host (177.137.3.x/24) can spoof 32767 neighboring addresses (within your /17 prefix)
Spoofed source address (anon) Prefix
ASN of spoofed
Received 177.137.3.x/24 /31 53240 sendto 177.137.3.x/24 /30 53240 sendto 177.137.3.x/24 /29 53240 sendto 177.137.3.x/24 /28 53240 sendto 177.137.3.x/24 /27 53240 sendto 177.137.3.x/24 /26 53240 sendto 177.137.3.x/24 /25 53240 sendto 177.137.3.x/24 /24 53240 sendto 177.137.2.x/24 /23 53240 sendto 177.137.1.x/24 /22 53240 sendto 177.137.7.x/24 /21 53240 sendto 177.137.11.x/24 /20 53240 sendto 177.137.19.x/24 /19 53225 sendto 177.137.35.x/24 /18 28235 sendto 177.137.67.x/24 /17 28311 yes 177.137.131.x/24 /16 263053 sendto 177.136.3.x/24 /15 52871 sendto 177.139.3.x/24 /14 27699 sendto 177.141.3.x/24 /13 28573 sendto 177.129.3.x/24 /12 262383 sendto 177.153.3.x/24 /11 27715 sendto 177.169.3.x/24 /10 26599 sendto 177.201.3.x/24 /9 8167 sendto 177.9.3.x/24 /8 27699 sendto
Meaning of status in Received column:
yes Packets spoofed from adjacent netblock were received sendto The spoofer client was unable to send spoofed headers due to an operating system restriction.
IPv4 Outbound Filtering Depth:
The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 1 IP hop(s).Summary:
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.Feedback:
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