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Session Report

Summary:
Test run at: 2024-06-11 20:36:05 GMT
Client Prefix (v4): 183.81.136.x/24
Client AS (v4): 38442 (VODAFONEFIJI-AS-FJ)
IPv4 Probes: 69
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable received
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 (183.81.136.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
183.81.136.x/24/3138442natblock
183.81.136.x/24/3038442natblock
183.81.136.x/24/2938442rewritten
183.81.136.x/24/2838442rewritten
183.81.136.x/24/2738442rewritten
183.81.136.x/24/2638442rewritten
183.81.136.x/24/2538442rewritten
183.81.136.x/24/2438442rewritten
183.81.137.x/24/2338442rewritten
183.81.138.x/24/2238442rewritten
183.81.140.x/24/2138442rewritten
183.81.128.x/24/2038442rewritten
183.81.152.x/24/1924527rewritten
183.81.168.x/24/18206264rewritten
183.81.200.x/24/17UNROUTEDrewritten
183.81.8.x/24/1618403rewritten
183.80.136.x/24/1518403rewritten
183.83.136.x/24/14UNROUTEDrewritten
183.85.136.x/24/1323724rewritten
183.89.136.x/24/1245758rewritten
183.65.136.x/24/114134rewritten
183.113.136.x/24/104766rewritten
183.17.136.x/24/94134rewritten
183.209.136.x/24/856046rewritten

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 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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