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Session Report

Summary:
Test run at: 2021-07-22 01:04:00 GMT
Client Prefix (v4): 139.216.101.x/24
Client AS (v4): 9443 (VOCUS-RETAIL-AU)
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable rewritten
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.

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 (139.216.101.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
139.216.101.x/24/319443rewritten
139.216.101.x/24/309443rewritten
139.216.101.x/24/299443rewritten
139.216.101.x/24/289443rewritten
139.216.101.x/24/279443rewritten
139.216.101.x/24/269443rewritten
139.216.101.x/24/259443rewritten
139.216.101.x/24/249443rewritten
139.216.100.x/24/239443rewritten
139.216.103.x/24/229443rewritten
139.216.97.x/24/219443rewritten
139.216.109.x/24/209443rewritten
139.216.117.x/24/199443rewritten
139.216.69.x/24/189443rewritten
139.216.37.x/24/179443rewritten
139.216.229.x/24/169443rewritten
139.217.101.x/24/1558593rewritten
139.218.101.x/24/149443rewritten
139.220.101.x/24/13UNROUTEDrewritten
139.208.101.x/24/124837rewritten
139.200.101.x/24/114134rewritten
139.248.101.x/24/10UNROUTEDrewritten
139.152.101.x/24/92497rewritten
139.88.101.x/24/8270rewritten

Meaning of status in Received column:

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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