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Session Report

Summary:
Test run at: 2020-09-30 21:40:01 GMT
Client Prefix (v4): 170.0.55.x/24
Client AS (v4): 264974
IPv4 Probes: 75
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 (170.0.55.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
170.0.55.x/24/31264974rewritten
170.0.55.x/24/30264974rewritten
170.0.55.x/24/29264974rewritten
170.0.55.x/24/28264974rewritten
170.0.55.x/24/27264974rewritten
170.0.55.x/24/26264974rewritten
170.0.55.x/24/25264974rewritten
170.0.55.x/24/24264974rewritten
170.0.54.x/24/23264974rewritten
170.0.53.x/24/22264974rewritten
170.0.51.x/24/21264961rewritten
170.0.63.x/24/20265008rewritten
170.0.39.x/24/19262887rewritten
170.0.23.x/24/1828668rewritten
170.0.119.x/24/17265003rewritten
170.0.183.x/24/1610269rewritten
170.1.55.x/24/15UNROUTEDrewritten
170.2.55.x/24/1413598rewritten
170.4.55.x/24/13UNROUTEDrewritten
170.8.55.x/24/1219372rewritten
170.16.55.x/24/113762rewritten
170.32.55.x/24/10UNROUTEDrewritten
170.64.55.x/24/9UNROUTEDrewritten
170.128.55.x/24/811685rewritten

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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