Test run at: 2022-10-09 11:43:58 GMT
Client Prefix (v4): 203.215.232.x/24
Client AS (v4): 4134 (CHINANET-BACKBONE)
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server) Source address type IPv4 Private - RFC1918 unknown Routable unknown 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.
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 (203.215.232.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) Prefix
ASN of spoofed
Received 203.215.232.x/24 /31 4134 sendto 203.215.232.x/24 /30 4134 sendto 203.215.232.x/24 /29 4134 sendto 203.215.232.x/24 /28 4134 sendto 203.215.232.x/24 /27 4134 sendto 203.215.232.x/24 /26 4134 sendto 203.215.232.x/24 /25 4134 sendto 203.215.232.x/24 /24 4134 sendto 203.215.233.x/24 /23 4134 sendto 203.215.234.x/24 /22 UNROUTED sendto 203.215.236.x/24 /21 4134 sendto 203.215.224.x/24 /20 23786 sendto 203.215.248.x/24 /19 9925 sendto 203.215.200.x/24 /18 3786 sendto 203.215.168.x/24 /17 17787 sendto 203.215.104.x/24 /16 6648 sendto 203.214.232.x/24 /15 9328 sendto 203.213.232.x/24 /14 24033 sendto 203.211.232.x/24 /13 7671 sendto 203.223.232.x/24 /12 UNROUTED sendto 203.199.232.x/24 /11 4755 sendto 203.247.232.x/24 /10 4766 sendto 203.151.232.x/24 /9 4618 sendto 203.87.232.x/24 /8 10139 no
Meaning of status in Received column:
no Packets spoofed from adjacent netblock were not received, probably due to blocking 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 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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