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Session Report

Summary:
Test run at: 2020-05-28 23:36:52 GMT
Client Prefix (v4): 45.5.139.x/24
Client AS (v4): 266098
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable received
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 (45.5.139.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
45.5.139.x/24/31266098rewritten
45.5.139.x/24/30266098rewritten
45.5.139.x/24/29266098rewritten
45.5.139.x/24/28266098rewritten
45.5.139.x/24/27266098rewritten
45.5.139.x/24/26266098rewritten
45.5.139.x/24/25266098rewritten
45.5.139.x/24/24266098rewritten
45.5.138.x/24/23266098rewritten
45.5.137.x/24/22266098rewritten
45.5.143.x/24/21266099rewritten
45.5.131.x/24/20266111rewritten
45.5.155.x/24/19265676rewritten
45.5.171.x/24/18266179rewritten
45.5.203.x/24/17266106rewritten
45.5.11.x/24/16265695rewritten
45.4.139.x/24/15264677rewritten
45.7.139.x/24/14265535rewritten
45.1.139.x/24/13UNROUTEDrewritten
45.13.139.x/24/126718rewritten
45.21.139.x/24/117018rewritten
45.37.139.x/24/1011426rewritten
45.69.139.x/24/9UNROUTEDrewritten
45.133.139.x/24/839877rewritten

Meaning of status in Received column:

rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 10 IP hop(s).
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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