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Session Report

Summary:
Test run at: 2018-05-23 10:18:05 GMT
Client Prefix (v4): 201.49.73.x/24
Client AS (v4): 28263
IPv4 Probes: 99
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable unknown
Largest spoofable neighbor prefix length none

Meaning of result status in column:

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 (201.49.73.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
201.49.73.x/24/31UNROUTEDsendto
201.49.73.x/24/30UNROUTEDsendto
201.49.73.x/24/29UNROUTEDsendto
201.49.73.x/24/28UNROUTEDsendto
201.49.73.x/24/27UNROUTEDsendto
201.49.73.x/24/26UNROUTEDsendto
201.49.73.x/24/25UNROUTEDsendto
201.49.73.x/24/24UNROUTEDsendto
201.49.72.x/24/23UNROUTEDsendto
201.49.75.x/24/22UNROUTEDsendto
201.49.77.x/24/21UNROUTEDsendto
201.49.65.x/24/20UNROUTEDsendto
201.49.89.x/24/19UNROUTEDsendto
201.49.105.x/24/18UNROUTEDsendto
201.49.9.x/24/17UNROUTEDsendto
201.49.201.x/24/16UNROUTEDsendto
201.48.73.x/24/15UNROUTEDsendto
201.51.73.x/24/14UNROUTEDnatblock
201.53.73.x/24/13UNROUTEDsendto
201.57.73.x/24/12UNROUTEDsendto
201.33.73.x/24/11UNROUTEDsendto
201.17.73.x/24/10UNROUTEDsendto
201.113.73.x/24/9UNROUTEDsendto
201.177.73.x/24/8UNROUTEDsendto

Meaning of status in Received column:

natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.
sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

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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