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Session Report

Summary:
Test run at: 2023-12-17 17:40:24 GMT
Client Prefix (v4): 184.83.76.x/24
Client AS (v4): 11232 (MIDCO-NET)
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 (184.83.76.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
184.83.76.x/24/3111232sendto
184.83.76.x/24/3011232sendto
184.83.76.x/24/2911232sendto
184.83.76.x/24/2811232sendto
184.83.76.x/24/2711232sendto
184.83.76.x/24/2611232sendto
184.83.76.x/24/2511232sendto
184.83.76.x/24/2411232sendto
184.83.77.x/24/2311232sendto
184.83.78.x/24/2211232sendto
184.83.72.x/24/2111232sendto
184.83.68.x/24/2011232sendto
184.83.92.x/24/1911232sendto
184.83.108.x/24/1811232sendto
184.83.12.x/24/1711232sendto
184.83.204.x/24/1611232sendto
184.82.76.x/24/15133481sendto
184.81.76.x/24/147029sendto
184.87.76.x/24/1320940sendto
184.91.76.x/24/1233363sendto
184.67.76.x/24/116327sendto
184.115.76.x/24/107922rewritten
184.19.76.x/24/95650sendto
184.211.76.x/24/8UNROUTEDsendto

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.
sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

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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