Test run at: 2021-08-11 08:15:54 GMT
Client Prefix (v4): 162.208.89.x/24
Client AS (v4): 55016 (IMPER-AS-1)
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server) Source address type IPv4 Private - RFC1918 ✔ blocked Routable ✔ rewritten Largest spoofable neighbor prefix length /23
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 (162.208.89.x/24) can spoof 511 neighboring addresses (within your /23 prefix)
Spoofed source address (anon) Prefix
ASN of spoofed
Received 162.208.89.x/24 /31 55016 yes 162.208.89.x/24 /30 55016 yes 162.208.89.x/24 /29 55016 yes 162.208.89.x/24 /28 55016 yes 162.208.89.x/24 /27 55016 yes 162.208.89.x/24 /26 55016 yes 162.208.89.x/24 /25 55016 yes 162.208.89.x/24 /24 55016 yes 162.208.88.x/24 /23 55016 yes 162.208.91.x/24 /22 55016 no 162.208.93.x/24 /21 23316 no 162.208.81.x/24 /20 812 no 162.208.73.x/24 /19 32953 no 162.208.121.x/24 /18 UNROUTED no 162.208.25.x/24 /17 UNROUTED no 162.208.217.x/24 /16 54614 no 162.209.89.x/24 /15 19994 no 162.210.89.x/24 /14 21951 no 162.212.89.x/24 /13 23314 no 162.216.89.x/24 /12 30418 no 162.192.89.x/24 /11 7018 no 162.240.89.x/24 /10 46606 no 162.144.89.x/24 /9 46606 no 162.80.89.x/24 /8 36091 no
Meaning of status in Received column:
no Packets spoofed from adjacent netblock were not received, probably due to blocking yes Packets spoofed from adjacent netblock were received (but that netblock is within the source AS)
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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