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Session Report

Summary:
Test run at: 2017-08-21 17:49:28 GMT
Client Prefix (v4): 109.235.110.x/24
Client AS (v4): 15433 (Tism)
IPv4 Probes: 120
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable rewritten
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 (109.235.110.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
109.235.110.x/24/3115433rewritten
109.235.110.x/24/3015433rewritten
109.235.110.x/24/2915433rewritten
109.235.110.x/24/2815433rewritten
109.235.110.x/24/2715433rewritten
109.235.110.x/24/2615433rewritten
109.235.110.x/24/2515433rewritten
109.235.110.x/24/2415433rewritten
109.235.111.x/24/2315433rewritten
109.235.108.x/24/2215433rewritten
109.235.106.x/24/2115433rewritten
109.235.102.x/24/20UNROUTEDrewritten
109.235.126.x/24/1929297rewritten
109.235.78.x/24/1825151rewritten
109.235.46.x/24/1750469rewritten
109.235.238.x/24/1651057rewritten
109.234.110.x/24/15196763rewritten
109.233.110.x/24/14UNROUTEDrewritten
109.239.110.x/24/1333920rewritten
109.227.110.x/24/1225133rewritten
109.251.110.x/24/1131148rewritten
109.203.110.x/24/1020860rewritten
109.171.110.x/24/921127rewritten
109.107.110.x/24/850977rewritten

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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