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Session Report

Summary:
Test run at: 2022-07-15 02:03:34 GMT
Client Prefix (v4): 175.176.52.x/24
Client AS (v4): 10139 (SMARTBRO-PH-AP)
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 (175.176.52.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
175.176.52.x/24/3110139rewritten
175.176.52.x/24/3010139rewritten
175.176.52.x/24/2910139rewritten
175.176.52.x/24/2810139rewritten
175.176.52.x/24/2710139rewritten
175.176.52.x/24/2610139rewritten
175.176.52.x/24/2510139rewritten
175.176.52.x/24/2410139rewritten
175.176.53.x/24/2310139rewritten
175.176.54.x/24/2210139rewritten
175.176.48.x/24/2110139rewritten
175.176.60.x/24/2010139rewritten
175.176.36.x/24/1910139rewritten
175.176.20.x/24/1810139rewritten
175.176.116.x/24/1710139rewritten
175.176.180.x/24/16UNROUTEDrewritten
175.177.52.x/24/159365rewritten
175.178.52.x/24/1445090rewritten
175.180.52.x/24/134780rewritten
175.184.52.x/24/122510rewritten
175.160.52.x/24/114837rewritten
175.144.52.x/24/104788rewritten
175.240.52.x/24/94766rewritten
175.48.52.x/24/89394rewritten

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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