Test run at: 2023-06-27 13:12:57 GMT
Client Prefix (v4): 186.209.87.x/24
Client AS (v4): 262907
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server) Source address type IPv4 Private - RFC1918 rewritten Routable rewritten Largest spoofable neighbor prefix length none
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.
IPv4 Adjacent Netblock Testing:
Your host (186.209.87.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) Prefix
ASN of spoofed
Received 186.209.87.x/24 /31 262907 rewritten 186.209.87.x/24 /30 262907 rewritten 186.209.87.x/24 /29 262907 rewritten 186.209.87.x/24 /28 262907 rewritten 186.209.87.x/24 /27 262907 rewritten 186.209.87.x/24 /26 262907 rewritten 186.209.87.x/24 /25 262907 rewritten 186.209.87.x/24 /24 262907 rewritten 186.209.86.x/24 /23 262907 rewritten 186.209.85.x/24 /22 262907 rewritten 186.209.83.x/24 /21 262907 rewritten 186.209.95.x/24 /20 265523 rewritten 186.209.71.x/24 /19 262743 rewritten 186.209.119.x/24 /18 UNROUTED rewritten 186.209.23.x/24 /17 28343 rewritten 186.209.215.x/24 /16 271822 rewritten 186.208.87.x/24 /15 263077 rewritten 186.211.87.x/24 /14 26615 rewritten 186.213.87.x/24 /13 18881 rewritten 186.217.87.x/24 /12 53166 rewritten 186.193.87.x/24 /11 262659 rewritten 186.241.87.x/24 /10 7738 rewritten 186.145.87.x/24 /9 10620 rewritten 186.81.87.x/24 /8 10620 rewritten
Meaning of status in Received column:
rewritten The source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.
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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