Test run at: 2019-02-26 18:12:13 GMT
Client Prefix (v4): 200.159.255.x/24
Client AS (v4): 1916
IPv4 Probes: 116
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.
Warnings:
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 (200.159.255.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 200.159.255.x/24 /31 1916 no 200.159.255.x/24 /30 1916 no 200.159.255.x/24 /29 1916 no 200.159.255.x/24 /28 1916 no 200.159.255.x/24 /27 1916 no 200.159.255.x/24 /26 1916 no 200.159.255.x/24 /25 1916 no 200.159.255.x/24 /24 1916 no 200.159.254.x/24 /23 1916 no 200.159.253.x/24 /22 1916 no 200.159.251.x/24 /21 1916 no 200.159.247.x/24 /20 1916 no 200.159.239.x/24 /19 23002 no 200.159.223.x/24 /18 23106 no 200.159.191.x/24 /17 28605 no 200.159.127.x/24 /16 10429 no 200.158.255.x/24 /15 27699 no 200.157.255.x/24 /14 17379 no 200.155.255.x/24 /13 UNROUTED no 200.151.255.x/24 /12 7738 no 200.143.255.x/24 /11 1916 no 200.191.255.x/24 /10 4230 no 200.223.255.x/24 /9 7738 no 200.31.255.x/24 /8 52416 no Meaning of status in Received column:
no Packets spoofed from adjacent netblock were not received, probably due to blocking
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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