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Session Report

Summary:
Test run at: 2020-11-15 21:05:05 GMT
Client Prefix (v4): 217.62.74.x/24
Client AS (v4): 33915 (TNF-AS)
IPv4 Probes: 75
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
receivedSpoofed packet was received.Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it.
rewrittenSpoofed packet was received, but the source address was changed en route.
blockedSpoofed packet was not received, but unspoofed packet was.
unknownNeither spoofed nor unspoofed packet was received.

Warnings:

IPv4 AS Route:
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 (217.62.74.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
217.62.74.x/24/3133915sendto
217.62.74.x/24/3033915sendto
217.62.74.x/24/2933915sendto
217.62.74.x/24/2833915sendto
217.62.74.x/24/2733915sendto
217.62.74.x/24/2633915sendto
217.62.74.x/24/2533915sendto
217.62.74.x/24/2433915sendto
217.62.75.x/24/2333915sendto
217.62.72.x/24/2233915sendto
217.62.78.x/24/2133915sendto
217.62.66.x/24/2033915sendto
217.62.90.x/24/1933915sendto
217.62.106.x/24/1833915sendto
217.62.10.x/24/1733915sendto
217.62.202.x/24/1633915sendto
217.63.74.x/24/1515542sendto
217.60.74.x/24/1458224sendto
217.58.74.x/24/133269sendto
217.54.74.x/24/1236992sendto
217.46.74.x/24/112856sendto
217.30.74.x/24/1048574sendto
217.126.74.x/24/93352sendto
217.190.74.x/24/86805sendto

Meaning of status in Received column:

sendtoThe 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:
We welcome questions and feedback to the Spoofer Information Mailing List and invite users to join the Spoofer Users Mailing List for discussion and announcements.
Last Modified