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Session Report

Summary:
Test run at: 2023-05-29 15:13:02 GMT
Client Prefix (v4): 64.137.225.x/24
Client AS (v4): 39891 (ALJAWWALSTC-AS)
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 (64.137.225.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
64.137.225.x/24/3139891natblock
64.137.225.x/24/3039891natblock
64.137.225.x/24/2939891natblock
64.137.225.x/24/2839891natblock
64.137.225.x/24/2739891natblock
64.137.225.x/24/2639891natblock
64.137.225.x/24/2539891natblock
64.137.225.x/24/2439891natblock
64.137.224.x/24/2339891natblock
64.137.227.x/24/2239891natblock
64.137.229.x/24/2139891natblock
64.137.233.x/24/2039891natblock
64.137.241.x/24/1939891natblock
64.137.193.x/24/1839891natblock
64.137.161.x/24/1730029natblock
64.137.97.x/24/16202044natblock
64.136.225.x/24/1519653natblock
64.139.225.x/24/1440285natblock
64.141.225.x/24/137381natblock
64.129.225.x/24/123549natblock
64.153.225.x/24/113356natblock
64.169.225.x/24/107018natblock
64.201.225.x/24/9UNROUTEDnatblock
64.9.225.x/24/836492natblock

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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