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Session Report

Summary:
Test run at: 2018-10-23 19:46:14 GMT
Client Prefix (v4): 140.221.253.x/24
Client AS (v4): 14031 (SCXY)
IPv4 Probes: 124
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.
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 (140.221.253.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
140.221.253.x/24/3114031yes
140.221.253.x/24/3014031yes
140.221.253.x/24/2914031yes
140.221.253.x/24/2814031yes
140.221.253.x/24/2714031yes
140.221.253.x/24/2614031yes
140.221.253.x/24/2514031yes
140.221.253.x/24/2414031yes
140.221.252.x/24/2314031yes
140.221.255.x/24/2214031yes
140.221.249.x/24/2114031yes
140.221.245.x/24/2014031yes
140.221.237.x/24/1914031yes
140.221.221.x/24/1814031yes
140.221.189.x/24/1714031yes
140.221.125.x/24/16683yes
140.220.253.x/24/15600yes
140.223.253.x/24/14701yes
140.217.253.x/24/1322284yes
140.213.253.x/24/12UNROUTEDyes
140.205.253.x/24/1137963yes
140.253.253.x/24/106262yes
140.157.253.x/24/9UNROUTEDyes
140.93.253.x/24/81715yes

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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