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Session Report

Summary:
Test run at: 2021-04-15 10:48:40 GMT
Client Prefix (v4): 186.233.176.x/24
Client AS (v4): 53209
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
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.
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 (186.233.176.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
186.233.176.x/24/3153209natblock
186.233.176.x/24/3053209natblock
186.233.176.x/24/2953209natblock
186.233.176.x/24/2853209natblock
186.233.176.x/24/2753209natblock
186.233.176.x/24/2653209natblock
186.233.176.x/24/2553209natblock
186.233.176.x/24/2453209natblock
186.233.177.x/24/2353209natblock
186.233.178.x/24/2253209natblock
186.233.180.x/24/2153209natblock
186.233.184.x/24/20262287natblock
186.233.160.x/24/1953050natblock
186.233.144.x/24/18262790natblock
186.233.240.x/24/17UNROUTEDnatblock
186.233.48.x/24/16UNROUTEDnatblock
186.232.176.x/24/15262772natblock
186.235.176.x/24/1428139natblock
186.237.176.x/24/13263018natblock
186.225.176.x/24/12263099natblock
186.249.176.x/24/11262532natblock
186.201.176.x/24/1010429natblock
186.169.176.x/24/93816natblock
186.105.176.x/24/87418natblock

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 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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