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Session Report

Summary:
Test run at: 2023-09-04 10:07:14 GMT
Client Prefix (v4): 45.236.117.x/24
Client AS (v4): 268235
IPv4 Probes: 63
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 (45.236.117.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
45.236.117.x/24/31268235rewritten
45.236.117.x/24/30268235rewritten
45.236.117.x/24/29268235rewritten
45.236.117.x/24/28268235rewritten
45.236.117.x/24/27268235rewritten
45.236.117.x/24/26268235rewritten
45.236.117.x/24/25268235rewritten
45.236.117.x/24/24268235rewritten
45.236.116.x/24/23268235rewritten
45.236.119.x/24/22268235rewritten
45.236.113.x/24/21268234rewritten
45.236.125.x/24/20266801rewritten
45.236.101.x/24/19266806rewritten
45.236.85.x/24/18268227rewritten
45.236.53.x/24/17268221rewritten
45.236.245.x/24/16266805rewritten
45.237.117.x/24/15268271rewritten
45.238.117.x/24/14268323rewritten
45.232.117.x/24/13UNROUTEDrewritten
45.228.117.x/24/12267081rewritten
45.252.117.x/24/11UNROUTEDrewritten
45.204.117.x/24/10399626rewritten
45.172.117.x/24/9268764rewritten
45.108.117.x/24/837069rewritten

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 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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