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Session Report

Summary:
Test run at: 2024-09-01 10:12:23 GMT
Client Prefix (v4): 150.242.20.x/24
Client AS (v4): 132976 (KINGSBROADBAND-AS-IN)
IPv4 Probes: 69
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 (150.242.20.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
150.242.20.x/24/31132976rewritten
150.242.20.x/24/30132976rewritten
150.242.20.x/24/29132976rewritten
150.242.20.x/24/28132976rewritten
150.242.20.x/24/27132976rewritten
150.242.20.x/24/26132976rewritten
150.242.20.x/24/25132976rewritten
150.242.20.x/24/24132976rewritten
150.242.21.x/24/23132976rewritten
150.242.22.x/24/22132976rewritten
150.242.16.x/24/2145117rewritten
150.242.28.x/24/20UNROUTEDrewritten
150.242.4.x/24/19UNROUTEDrewritten
150.242.52.x/24/18UNROUTEDrewritten
150.242.84.x/24/17132453rewritten
150.242.148.x/24/1623860rewritten
150.243.20.x/24/15393750rewritten
150.240.20.x/24/1436351rewritten
150.246.20.x/24/132527rewritten
150.250.20.x/24/1233523rewritten
150.226.20.x/24/11367rewritten
150.210.20.x/24/1031822rewritten
150.178.20.x/24/9137rewritten
150.114.20.x/24/8749rewritten

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 unable to spoof routable, non-adjacent source addresses through even the first IP hop.
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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