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Session Report

Summary:
Test run at: 2017-08-03 21:08:50 GMT
Client Prefix (v4): 65.102.242.x/24
Client AS (v4): 209 (CENTURYLINK-US-LEGACY-QWEST)
IPv4 Probes: 120
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 (65.102.242.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
65.102.242.x/24/31209rewritten
65.102.242.x/24/30209rewritten
65.102.242.x/24/29209rewritten
65.102.242.x/24/28209rewritten
65.102.242.x/24/27209rewritten
65.102.242.x/24/26209rewritten
65.102.242.x/24/25209rewritten
65.102.242.x/24/24209rewritten
65.102.243.x/24/23209rewritten
65.102.240.x/24/22209rewritten
65.102.246.x/24/21209rewritten
65.102.250.x/24/20209rewritten
65.102.226.x/24/19209rewritten
65.102.210.x/24/18209rewritten
65.102.178.x/24/17209rewritten
65.102.114.x/24/16209rewritten
65.103.242.x/24/15209rewritten
65.100.242.x/24/14209rewritten
65.98.242.x/24/1314265rewritten
65.110.242.x/24/122698rewritten
65.118.242.x/24/11209rewritten
65.70.242.x/24/107018rewritten
65.38.242.x/24/918557rewritten
65.230.242.x/24/8701rewritten

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 able to spoof routable, non-adjacent source addresses through the first 2 IP hop(s).
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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