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Session Report

Summary:
Test run at: 2018-02-05 07:44:41 GMT
Client Prefix (v4): 74.120.221.x/24
Client AS (v4): 36666 (GTCOMM)
IPv4 Probes: 102
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable unknown
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 (74.120.221.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
74.120.221.x/24/3136666sendto
74.120.221.x/24/3036666sendto
74.120.221.x/24/2936666sendto
74.120.221.x/24/2836666sendto
74.120.221.x/24/2736666sendto
74.120.221.x/24/2636666sendto
74.120.221.x/24/2536666sendto
74.120.221.x/24/2436666sendto
74.120.220.x/24/2336666sendto
74.120.223.x/24/2236666sendto
74.120.217.x/24/2135914sendto
74.120.213.x/24/2032326sendto
74.120.205.x/24/1932845sendto
74.120.253.x/24/18UNROUTEDsendto
74.120.157.x/24/1725681sendto
74.120.93.x/24/1640160sendto
74.121.221.x/24/1546576sendto
74.122.221.x/24/1453450sendto
74.124.221.x/24/1317139sendto
74.112.221.x/24/12UNROUTEDsendto
74.104.221.x/24/11701sendto
74.88.221.x/24/106128sendto
74.56.221.x/24/95769sendto
74.248.221.x/24/87018sendto

Meaning of status in Received column:

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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