Test run at: 2019-01-28 17:43:22 GMT
Client Prefix (v4): 143.208.184.x/24
Client AS (v4): 265118
IPv4 Probes: 124
Outbound spoofing summary (from the client to our server) Source address type IPv4 Private - RFC1918 rewritten Routable ✔ blocked Largest spoofable neighbor prefix length /22
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 (143.208.184.x/24) can spoof 1023 neighboring addresses (within your /22 prefix)
Spoofed source address (anon) Prefix
ASN of spoofed
Received 143.208.184.x/24 /31 265118 yes 143.208.184.x/24 /30 265118 yes 143.208.184.x/24 /29 265118 no 143.208.184.x/24 /28 265118 yes 143.208.184.x/24 /27 265118 yes 143.208.184.x/24 /26 265118 yes 143.208.184.x/24 /25 265118 yes 143.208.184.x/24 /24 265118 yes 143.208.185.x/24 /23 265118 yes 143.208.186.x/24 /22 265118 yes 143.208.188.x/24 /21 UNROUTED no 143.208.176.x/24 /20 265117 no 143.208.168.x/24 /19 262145 no 143.208.152.x/24 /18 265130 no 143.208.248.x/24 /17 265133 no 143.208.56.x/24 /16 22869 no 143.209.184.x/24 /15 15288 no 143.210.184.x/24 /14 786 no 143.212.184.x/24 /13 1602 no 143.216.184.x/24 /12 4739 no 143.192.184.x/24 /11 UNROUTED no 143.240.184.x/24 /10 174 no 143.144.184.x/24 /9 440 no 143.80.184.x/24 /8 UNROUTED 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 unable to spoof routable, non-adjacent source addresses through even the first IP hop.Summary:
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.Feedback:
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