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Session Report

Summary:
Test run at: 2016-09-26 09:22:10 GMT
Client Prefix (v4): 157.157.65.x/24
Client AS (v4): 6677 (ICENET-AS1)
IPv4 Probes: 105
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable unknown
Largest spoofable neighbor prefix length none
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 (157.157.65.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
157.157.65.x/24/316677natblock
157.157.65.x/24/306677natblock
157.157.65.x/24/296677natblock
157.157.65.x/24/286677natblock
157.157.65.x/24/276677natblock
157.157.65.x/24/266677natblock
157.157.65.x/24/256677natblock
157.157.65.x/24/246677natblock
157.157.64.x/24/236677natblock
157.157.67.x/24/226677natblock
157.157.69.x/24/216677natblock
157.157.73.x/24/206677natblock
157.157.81.x/24/196677natblock
157.157.97.x/24/186677natblock
157.157.1.x/24/176677natblock
157.157.193.x/24/166677natblock
157.156.65.x/24/1517816natblock
157.159.65.x/24/142094natblock
157.153.65.x/24/13UNROUTEDnatblock
157.149.65.x/24/123464natblock
157.141.65.x/24/1127064natblock
157.189.65.x/24/10UNROUTEDnatblock
157.221.65.x/24/9UNROUTEDnatblock
157.29.65.x/24/88968natblock

Meaning of status in Received column:

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 unable to spoof routable, non-adjacent source addresses through even the first IP hop.
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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