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Session Report

Summary:
Test run at: 2021-06-18 17:10:51 GMT
Client Prefix (v4): 45.225.19.x/24
Client AS (v4): 266920
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable received
Largest spoofable neighbor prefix length /27

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 (45.225.19.x/24) can spoof 31 neighboring addresses (within your /27 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
45.225.19.x/24/31266920yes
45.225.19.x/24/30266920yes
45.225.19.x/24/29266920yes
45.225.19.x/24/28266920yes
45.225.19.x/24/27266920yes
45.225.19.x/24/26266920rewritten
45.225.19.x/24/25266920rewritten
45.225.19.x/24/24266920rewritten
45.225.18.x/24/23266920rewritten
45.225.17.x/24/22266920rewritten
45.225.23.x/24/21266926rewritten
45.225.27.x/24/20266927rewritten
45.225.3.x/24/19265857rewritten
45.225.51.x/24/18266941rewritten
45.225.83.x/24/17UNROUTEDrewritten
45.225.147.x/24/16266944rewritten
45.224.19.x/24/15266976rewritten
45.227.19.x/24/14265869rewritten
45.229.19.x/24/13266690rewritten
45.233.19.x/24/12267288rewritten
45.241.19.x/24/1124863rewritten
45.193.19.x/24/10134548rewritten
45.161.19.x/24/9268446rewritten
45.97.19.x/24/837069rewritten

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
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 7 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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