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Session Report

Summary:
Test run at: 2017-10-13 19:02:39 GMT
Client Prefix (v4): 64.250.81.x/24
Client AS (v4): 33130 (IASL)
IPv4 Probes: 105
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
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 (64.250.81.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
64.250.81.x/24/3133130yes
64.250.81.x/24/3033130yes
64.250.81.x/24/2933130yes
64.250.81.x/24/2733130yes
64.250.81.x/24/2633130yes
64.250.81.x/24/2533130yes
64.250.81.x/24/2433130yes
64.250.80.x/24/2333130yes
64.250.83.x/24/2233130yes
64.250.85.x/24/2133130yes
64.250.89.x/24/2033130yes
64.250.65.x/24/1911979yes
64.250.113.x/24/1823367yes
64.250.209.x/24/1611650yes
64.251.81.x/24/156327yes
64.248.81.x/24/144565yes
64.242.81.x/24/123561yes
64.234.81.x/24/1140285yes
64.218.81.x/24/107018yes
64.186.81.x/24/911776yes
64.122.81.x/24/87385yes

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 10 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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