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Session Report

Summary:
Test run at: 2023-01-20 19:14:18 GMT
Client Prefix (v4): 209.14.144.x/24
Client AS (v4): 53180
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable received
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 (209.14.144.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
209.14.144.x/24/3153180rewritten
209.14.144.x/24/3053180rewritten
209.14.144.x/24/2953180rewritten
209.14.144.x/24/2853180rewritten
209.14.144.x/24/2753180rewritten
209.14.144.x/24/2653180rewritten
209.14.144.x/24/2553180rewritten
209.14.144.x/24/2453180rewritten
209.14.145.x/24/2353180rewritten
209.14.146.x/24/2253180rewritten
209.14.148.x/24/21268255rewritten
209.14.152.x/24/20174rewritten
209.14.128.x/24/19174rewritten
209.14.176.x/24/18262632rewritten
209.14.208.x/24/1728165rewritten
209.14.16.x/24/16174rewritten
209.15.144.x/24/157992rewritten
209.12.144.x/24/143549rewritten
209.10.144.x/24/1320141rewritten
209.6.144.x/24/126079rewritten
209.30.144.x/24/117018rewritten
209.46.144.x/24/10721rewritten
209.78.144.x/24/97018rewritten
209.142.144.x/24/822561rewritten

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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