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Session Report

Summary:
Test run at: 2022-07-21 17:46:20 GMT
Client Prefix (v4): 187.109.22.x/24
Client AS (v4): 53112
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
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 (187.109.22.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
187.109.22.x/24/3153112rewritten
187.109.22.x/24/3053112rewritten
187.109.22.x/24/2953112rewritten
187.109.22.x/24/2853112rewritten
187.109.22.x/24/2753112rewritten
187.109.22.x/24/2653112rewritten
187.109.22.x/24/2553112rewritten
187.109.22.x/24/2453112rewritten
187.109.23.x/24/2353112rewritten
187.109.20.x/24/2253112rewritten
187.109.18.x/24/2153112rewritten
187.109.30.x/24/2053112rewritten
187.109.6.x/24/1928198rewritten
187.109.54.x/24/1853113rewritten
187.109.86.x/24/1753139rewritten
187.109.150.x/24/1628668rewritten
187.108.22.x/24/1553169rewritten
187.111.22.x/24/1453120rewritten
187.105.22.x/24/1328573rewritten
187.101.22.x/24/1227699rewritten
187.125.22.x/24/117738rewritten
187.77.22.x/24/107738rewritten
187.45.22.x/24/928580rewritten
187.237.22.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 1 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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