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Session Report

Summary:
Test run at: 2017-09-27 14:19:21 GMT
Client Prefix (v4): 116.206.38.x/24
Client AS (v4): 45727 (THREE-AS-ID)
IPv4 Probes: 117
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 (116.206.38.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
116.206.38.x/24/3145727rewritten
116.206.38.x/24/3045727rewritten
116.206.38.x/24/2945727rewritten
116.206.38.x/24/2845727rewritten
116.206.38.x/24/2745727rewritten
116.206.38.x/24/2645727rewritten
116.206.38.x/24/2545727rewritten
116.206.38.x/24/2445727rewritten
116.206.39.x/24/2345727rewritten
116.206.36.x/24/2245727rewritten
116.206.34.x/24/21133214rewritten
116.206.46.x/24/20UNROUTEDrewritten
116.206.54.x/24/1926658rewritten
116.206.6.x/24/1823679rewritten
116.206.102.x/24/17UNROUTEDrewritten
116.206.166.x/24/169387rewritten
116.207.38.x/24/154134rewritten
116.204.38.x/24/1417962rewritten
116.202.38.x/24/13131222rewritten
116.198.38.x/24/12UNROUTEDrewritten
116.222.38.x/24/119824rewritten
116.238.38.x/24/104812rewritten
116.142.38.x/24/9UNROUTEDrewritten
116.78.38.x/24/84837rewritten

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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