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Session Report

Summary:
Test run at: 2021-06-10 03:39:20 GMT
Client Prefix (v4): 189.113.191.x/24
Client AS (v4): 270311
IPv4 Probes: 66
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 (189.113.191.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
189.113.191.x/24/31270311rewritten
189.113.191.x/24/30270311rewritten
189.113.191.x/24/29270311rewritten
189.113.191.x/24/28270311rewritten
189.113.191.x/24/27270311rewritten
189.113.191.x/24/26270311rewritten
189.113.191.x/24/25270311rewritten
189.113.191.x/24/24270311rewritten
189.113.190.x/24/23270311rewritten
189.113.189.x/24/22270311rewritten
189.113.187.x/24/21270343rewritten
189.113.183.x/24/20270334rewritten
189.113.175.x/24/1928216rewritten
189.113.159.x/24/1828215rewritten
189.113.255.x/24/1728288rewritten
189.113.63.x/24/16262727rewritten
189.112.191.x/24/1516735rewritten
189.115.191.x/24/1418881rewritten
189.117.191.x/24/1326615rewritten
189.121.191.x/24/1228573rewritten
189.97.191.x/24/1126599rewritten
189.81.191.x/24/107738rewritten
189.49.191.x/24/97738rewritten
189.241.191.x/24/88151rewritten

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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