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Session Report

Summary:
Test run at: 2019-10-04 02:36:05 GMT
Client Prefix (v4): 181.14.239.x/24
Client AS (v4): 265663
IPv4 Probes: 72
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 (181.14.239.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
181.14.239.x/24/31265663rewritten
181.14.239.x/24/30265663rewritten
181.14.239.x/24/29265663rewritten
181.14.239.x/24/28265663rewritten
181.14.239.x/24/27265663rewritten
181.14.239.x/24/26265663rewritten
181.14.239.x/24/25265663rewritten
181.14.239.x/24/24265663rewritten
181.14.238.x/24/237303rewritten
181.14.237.x/24/227303rewritten
181.14.235.x/24/217303rewritten
181.14.231.x/24/207303rewritten
181.14.255.x/24/197303rewritten
181.14.207.x/24/187303rewritten
181.14.175.x/24/177303rewritten
181.14.111.x/24/167303rewritten
181.15.239.x/24/157303rewritten
181.12.239.x/24/147303rewritten
181.10.239.x/24/137303rewritten
181.6.239.x/24/127303rewritten
181.30.239.x/24/1110318rewritten
181.46.239.x/24/1027747rewritten
181.78.239.x/24/9UNROUTEDrewritten
181.142.239.x/24/813489rewritten

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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