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Session Report

Summary:
Test run at: 2023-09-02 22:32:45 GMT
Client Prefix (v4): 179.60.5.x/24
Client AS (v4): 11815
IPv4 Probes: 63
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 (179.60.5.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
179.60.5.x/24/3111815rewritten
179.60.5.x/24/3011815natblock
179.60.5.x/24/2911815rewritten
179.60.5.x/24/2811815rewritten
179.60.5.x/24/2711815rewritten
179.60.5.x/24/2611815natblock
179.60.5.x/24/2511815rewritten
179.60.5.x/24/2411815rewritten
179.60.4.x/24/2311815rewritten
179.60.7.x/24/2211815natblock
179.60.1.x/24/2111815rewritten
179.60.13.x/24/2011815rewritten
179.60.21.x/24/1911815rewritten
179.60.37.x/24/183549rewritten
179.60.69.x/24/1727901rewritten
179.60.133.x/24/16270668natblock
179.61.5.x/24/15UNROUTEDnatblock
179.62.5.x/24/1461523rewritten
179.56.5.x/24/1314117natblock
179.52.5.x/24/126400rewritten
179.44.5.x/24/116306rewritten
179.28.5.x/24/106057rewritten
179.124.5.x/24/928264rewritten
179.188.5.x/24/827715rewritten

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.
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 able to spoof routable, non-adjacent source addresses through the first 1 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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