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Session Report

Summary:
Test run at: 2022-08-29 10:48:29 GMT
Client Prefix (v4): 193.38.254.x/24
Client AS (v4): 212043 (AS365)
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 (193.38.254.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
193.38.254.x/24/31212043rewritten
193.38.254.x/24/30212043rewritten
193.38.254.x/24/29212043rewritten
193.38.254.x/24/28212043rewritten
193.38.254.x/24/27212043rewritten
193.38.254.x/24/26212043rewritten
193.38.254.x/24/25212043rewritten
193.38.254.x/24/24212043rewritten
193.38.255.x/24/2344176rewritten
193.38.252.x/24/22201934rewritten
193.38.250.x/24/21212815rewritten
193.38.246.x/24/20211441rewritten
193.38.238.x/24/1915502rewritten
193.38.222.x/24/182856rewritten
193.38.190.x/24/1751964rewritten
193.38.126.x/24/165089rewritten
193.39.254.x/24/1561323rewritten
193.36.254.x/24/1415404rewritten
193.34.254.x/24/1328846rewritten
193.46.254.x/24/1247890rewritten
193.54.254.x/24/112200rewritten
193.6.254.x/24/101955rewritten
193.102.254.x/24/9702rewritten
193.166.254.x/24/81741rewritten

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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