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Session Report

Summary:
Test run at: 2020-05-22 22:47:33 GMT
Client Prefix (v4): 177.71.27.x/24
Client AS (v4): 262427
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable rewritten
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 (177.71.27.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
177.71.27.x/24/31262427sendto
177.71.27.x/24/30262427sendto
177.71.27.x/24/29262427sendto
177.71.27.x/24/28262427sendto
177.71.27.x/24/27262427sendto
177.71.27.x/24/26262427sendto
177.71.27.x/24/25262427sendto
177.71.27.x/24/24262427sendto
177.71.26.x/24/23262427sendto
177.71.25.x/24/22262427sendto
177.71.31.x/24/21262427sendto
177.71.19.x/24/2028254sendto
177.71.11.x/24/1953131sendto
177.71.59.x/24/18262560sendto
177.71.91.x/24/17263604sendto
177.71.155.x/24/1616509sendto
177.70.27.x/24/1528209sendto
177.69.27.x/24/1416735sendto
177.67.27.x/24/1352662sendto
177.79.27.x/24/1226599sendto
177.87.27.x/24/11UNROUTEDsendto
177.103.27.x/24/1027699sendto
177.7.27.x/24/98167sendto
177.199.27.x/24/826599sendto

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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