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Session Report

Summary:
Test run at: 2024-01-30 17:26:35 GMT
Client Prefix (v4): 174.213.245.x/24
Client AS (v4): 6167 (CELLCO-PART)
IPv4 Probes: 66
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 (174.213.245.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
174.213.245.x/24/316167rewritten
174.213.245.x/24/306167rewritten
174.213.245.x/24/296167rewritten
174.213.245.x/24/286167rewritten
174.213.245.x/24/276167rewritten
174.213.245.x/24/266167rewritten
174.213.245.x/24/256167rewritten
174.213.245.x/24/246167rewritten
174.213.244.x/24/236167rewritten
174.213.247.x/24/226167rewritten
174.213.241.x/24/216167rewritten
174.213.253.x/24/206167rewritten
174.213.229.x/24/196167rewritten
174.213.213.x/24/186167rewritten
174.213.181.x/24/176167rewritten
174.213.117.x/24/166167rewritten
174.212.245.x/24/156167rewritten
174.215.245.x/24/146167rewritten
174.209.245.x/24/136167rewritten
174.221.245.x/24/1222394rewritten
174.197.245.x/24/116167rewritten
174.245.245.x/24/106167rewritten
174.149.245.x/24/9UNROUTEDrewritten
174.85.245.x/24/820115rewritten

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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