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Session Report

Summary:
Test run at: 2017-03-18 21:39:11 GMT
Client Prefix (v4): 98.125.156.x/24
Client AS (v4): 209 (CENTURYLINK-US-LEGACY-QWEST)
IPv4 Probes: 90
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 received
Routable received
Largest spoofable neighbor prefix length /8
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 (98.125.156.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
98.125.156.x/24/31209yes
98.125.156.x/24/30209yes
98.125.156.x/24/29209yes
98.125.156.x/24/28209yes
98.125.156.x/24/27209yes
98.125.156.x/24/26209yes
98.125.156.x/24/25209yes
98.125.156.x/24/24209yes
98.125.157.x/24/23209yes
98.125.158.x/24/22209yes
98.125.152.x/24/2122561yes
98.125.148.x/24/20209yes
98.125.140.x/24/1922561yes
98.125.188.x/24/18209yes
98.125.220.x/24/17209yes
98.125.28.x/24/1622561yes
98.124.156.x/24/1536700yes
98.127.156.x/24/1433588yes
98.121.156.x/24/1311426yes
98.117.156.x/24/12UNROUTEDyes
98.109.156.x/24/11701yes
98.93.156.x/24/106389yes
98.61.156.x/24/97922yes
98.253.156.x/24/87922yes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 11 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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