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Session Report

Summary:
Test run at: 2022-03-07 01:23:39 GMT
Client Prefix (v4): 27.33.172.x/24
Client AS (v4): 7545 (TPG-INTERNET-AP)
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
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.
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 (27.33.172.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
27.33.172.x/24/317545natblock
27.33.172.x/24/307545natblock
27.33.172.x/24/297545natblock
27.33.172.x/24/287545natblock
27.33.172.x/24/277545natblock
27.33.172.x/24/267545natblock
27.33.172.x/24/257545natblock
27.33.172.x/24/247545natblock
27.33.173.x/24/237545natblock
27.33.174.x/24/227545natblock
27.33.168.x/24/217545natblock
27.33.164.x/24/207545natblock
27.33.188.x/24/197545natblock
27.33.140.x/24/187545natblock
27.33.236.x/24/177545natblock
27.33.44.x/24/167545natblock
27.32.172.x/24/157545natblock
27.35.172.x/24/1423584natblock
27.37.172.x/24/1317816natblock
27.41.172.x/24/1217816natblock
27.49.172.x/24/11137125natblock
27.1.172.x/24/109943natblock
27.97.172.x/24/9UNROUTEDnatblock
27.161.172.x/24/89644natblock

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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