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Session Report

Summary:
Test run at: 2022-01-29 16:50:01 GMT
Client Prefix (v4): 142.112.204.x/24
Client AS (v4): 577 (BACOM)
IPv4 Probes: 63
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable received
Largest spoofable neighbor prefix length none

Meaning of result status in column:

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 (142.112.204.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
142.112.204.x/24/31577rewritten
142.112.204.x/24/30577rewritten
142.112.204.x/24/29577rewritten
142.112.204.x/24/28577rewritten
142.112.204.x/24/27577sendto
142.112.204.x/24/26577rewritten
142.112.204.x/24/25577rewritten
142.112.204.x/24/24577rewritten
142.112.205.x/24/23577rewritten
142.112.206.x/24/22577rewritten
142.112.200.x/24/21577rewritten
142.112.196.x/24/20577rewritten
142.112.220.x/24/19577rewritten
142.112.236.x/24/18577rewritten
142.112.140.x/24/17577rewritten
142.112.76.x/24/16577rewritten
142.113.204.x/24/15577rewritten
142.114.204.x/24/14577rewritten
142.116.204.x/24/13577rewritten
142.120.204.x/24/12577rewritten
142.96.204.x/24/11UNROUTEDsendto
142.80.204.x/24/10UNROUTEDrewritten
142.48.204.x/24/9UNROUTEDrewritten
142.240.204.x/24/836750rewritten

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 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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