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Session Report

Summary:
Test run at: 2017-03-28 15:15:13 GMT
Client Prefix (v4): 218.157.243.x/24
Client AS (v4): 4766 (KIXS-AS-KR)
IPv4 Probes: 91
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /24
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 (218.157.243.x/24) can spoof 255 neighboring addresses (within your /24 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
218.157.243.x/24/314766yes
218.157.243.x/24/304766yes
218.157.243.x/24/294766yes
218.157.243.x/24/284766yes
218.157.243.x/24/274766yes
218.157.243.x/24/264766yes
218.157.243.x/24/254766yes
218.157.243.x/24/244766yes
218.157.242.x/24/234766no
218.157.241.x/24/224766no
218.157.247.x/24/214766no
218.157.251.x/24/204766no
218.157.227.x/24/194766no
218.157.211.x/24/184766no
218.157.179.x/24/174766no
218.157.115.x/24/164766no
218.156.243.x/24/154766no
218.159.243.x/24/144766no
218.153.243.x/24/134766no
218.149.243.x/24/124766no
218.141.243.x/24/1117676no
218.189.243.x/24/109304no
218.221.243.x/24/92527no
218.29.243.x/24/84837no

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
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 1 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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