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Session Report

Summary:
Test run at: 2021-10-11 00:49:57 GMT
Client Prefix (v4): 136.158.16.x/24
Client AS (v4): 17639 (CONVERGE-AS)
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable blocked
Largest spoofable neighbor prefix length none

Meaning of result status in column:

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.
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 (136.158.16.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
136.158.16.x/24/3117639sendto
136.158.16.x/24/3017639sendto
136.158.16.x/24/2917639sendto
136.158.16.x/24/2817639sendto
136.158.16.x/24/2717639sendto
136.158.16.x/24/2617639sendto
136.158.16.x/24/2517639sendto
136.158.16.x/24/2417639sendto
136.158.17.x/24/2317639sendto
136.158.18.x/24/2217639sendto
136.158.20.x/24/2117639sendto
136.158.24.x/24/2017639sendto
136.158.0.x/24/1917639sendto
136.158.48.x/24/1817639sendto
136.158.80.x/24/1717639sendto
136.158.144.x/24/1617639sendto
136.159.16.x/24/1533091sendto
136.156.16.x/24/14786sendto
136.154.16.x/24/139348sendto
136.150.16.x/24/12UNROUTEDsendto
136.142.16.x/24/114130sendto
136.190.16.x/24/10749sendto
136.222.16.x/24/9749sendto
136.30.16.x/24/819165sendto

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.
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