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Session Report

Summary:
Test run at: 2017-03-26 15:55:06 GMT
Client Prefix (v4): 118.172.12.x/24
Client AS (v4): 23969 (TOT-NET)
IPv4 Probes: 91
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 (118.172.12.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
118.172.12.x/24/3123969rewritten
118.172.12.x/24/3023969rewritten
118.172.12.x/24/2923969rewritten
118.172.12.x/24/2823969rewritten
118.172.12.x/24/2723969rewritten
118.172.12.x/24/2623969rewritten
118.172.12.x/24/2523969rewritten
118.172.12.x/24/2423969rewritten
118.172.13.x/24/2323969rewritten
118.172.14.x/24/2223969rewritten
118.172.8.x/24/2123969rewritten
118.172.4.x/24/209737rewritten
118.172.28.x/24/1923969rewritten
118.172.44.x/24/1823969rewritten
118.172.76.x/24/1723969rewritten
118.172.140.x/24/1623969rewritten
118.173.12.x/24/1523969rewritten
118.174.12.x/24/14131293rewritten
118.168.12.x/24/133462rewritten
118.164.12.x/24/123462rewritten
118.188.12.x/24/11UNROUTEDrewritten
118.140.12.x/24/109304rewritten
118.236.12.x/24/92527rewritten
118.44.12.x/24/84766rewritten

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 unable to spoof routable, non-adjacent source addresses through even the first IP hop.
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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