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Session Report

Summary:
Test run at: 2017-03-23 07:22:13 GMT
Client Prefix (v4): 42.104.87.x/24
Client AS (v4): 55410 (VIL-AS-AP)
IPv4 Probes: 90
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 (42.104.87.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
42.104.87.x/24/3155410rewritten
42.104.87.x/24/3055410rewritten
42.104.87.x/24/2955410rewritten
42.104.87.x/24/2855410rewritten
42.104.87.x/24/2755410rewritten
42.104.87.x/24/2655410rewritten
42.104.87.x/24/2555410rewritten
42.104.87.x/24/2455410rewritten
42.104.86.x/24/2355410rewritten
42.104.85.x/24/2255410rewritten
42.104.83.x/24/2155410rewritten
42.104.95.x/24/2055410rewritten
42.104.71.x/24/1955410rewritten
42.104.119.x/24/1855410rewritten
42.104.23.x/24/1738266rewritten
42.104.215.x/24/1638266rewritten
42.105.87.x/24/1538266rewritten
42.106.87.x/24/1438266rewritten
42.108.87.x/24/1338266rewritten
42.96.87.x/24/1263849rewritten
42.120.87.x/24/1137963rewritten
42.72.87.x/24/1017421rewritten
42.40.87.x/24/99644rewritten
42.232.87.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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