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Session Report

Summary:
Test run at: 2022-03-01 12:44:28 GMT
Client Prefix (v4): 93.143.254.x/24
Client AS (v4): 5391 (T-HT)
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 (93.143.254.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
93.143.254.x/24/315391rewritten
93.143.254.x/24/305391rewritten
93.143.254.x/24/295391rewritten
93.143.254.x/24/285391rewritten
93.143.254.x/24/275391rewritten
93.143.254.x/24/265391rewritten
93.143.254.x/24/255391rewritten
93.143.254.x/24/245391rewritten
93.143.255.x/24/235391rewritten
93.143.252.x/24/225391rewritten
93.143.250.x/24/215391rewritten
93.143.246.x/24/205391rewritten
93.143.238.x/24/195391rewritten
93.143.222.x/24/185391rewritten
93.143.190.x/24/175391rewritten
93.143.126.x/24/165391rewritten
93.142.254.x/24/155391rewritten
93.141.254.x/24/145391rewritten
93.139.254.x/24/135391rewritten
93.135.254.x/24/126805rewritten
93.159.254.x/24/1134953rewritten
93.175.254.x/24/10UNROUTEDrewritten
93.207.254.x/24/93320rewritten
93.15.254.x/24/815557rewritten

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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