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Session Report

Summary:
Test run at: 2017-05-14 16:55:01 GMT
Client Prefix (v4): 14.99.73.x/24
Client AS (v4): 55740 (TTSLMEIS-AS-AP)
IPv4 Probes: 117
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable received
Largest spoofable neighbor prefix length /9
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 (14.99.73.x/24) can spoof 8388607 neighboring addresses (within your /9 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
14.99.73.x/24/3155740yes
14.99.73.x/24/3055740yes
14.99.73.x/24/2955740yes
14.99.73.x/24/2855740yes
14.99.73.x/24/2755740yes
14.99.73.x/24/2655740yes
14.99.73.x/24/2555740yes
14.99.73.x/24/2455740yes
14.99.72.x/24/2355740yes
14.99.75.x/24/2255740yes
14.99.77.x/24/2155740yes
14.99.65.x/24/2055740yes
14.99.89.x/24/1955740yes
14.99.105.x/24/1855740yes
14.99.9.x/24/1755740yes
14.99.201.x/24/1655740yes
14.98.73.x/24/1555740yes
14.97.73.x/24/1455470yes
14.103.73.x/24/13UNROUTEDnatblock
14.107.73.x/24/124134yes
14.115.73.x/24/114134yes
14.67.73.x/24/104766yes
14.35.73.x/24/938394yes
14.227.73.x/24/8UNROUTEDnatblock

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)
natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

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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