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Session Report

Summary:
Test run at: 2020-01-17 01:06:51 GMT
Client Prefix (v4): 148.209.73.x/24
Client AS (v4): 22122
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable unknown
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 (148.209.73.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
148.209.73.x/24/3122122natblock
148.209.73.x/24/3022122natblock
148.209.73.x/24/2922122natblock
148.209.73.x/24/2822122natblock
148.209.73.x/24/2722122natblock
148.209.73.x/24/2622122natblock
148.209.73.x/24/2522122natblock
148.209.73.x/24/2422122natblock
148.209.72.x/24/2322122natblock
148.209.75.x/24/2222122natblock
148.209.77.x/24/2122122natblock
148.209.65.x/24/2022122natblock
148.209.89.x/24/1922122natblock
148.209.105.x/24/1822122natblock
148.209.9.x/24/1722122natblock
148.209.201.x/24/1622122natblock
148.208.73.x/24/1513579natblock
148.211.73.x/24/1428414natblock
148.213.73.x/24/1315236natblock
148.217.73.x/24/128151natblock
148.193.73.x/24/1118819natblock
148.241.73.x/24/1010436natblock
148.145.73.x/24/9UNROUTEDnatblock
148.81.73.x/24/81887natblock

Meaning of status in Received column:

natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

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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