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Session Report

Summary:
Test run at: 2017-06-02 08:39:21 GMT
Client Prefix (v4): 178.48.59.x/24
Client AS (v4): 6830 (LibertyGlobal)
IPv4 Probes: 131
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable rewritten
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 (178.48.59.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
178.48.59.x/24/316830natblock
178.48.59.x/24/306830natblock
178.48.59.x/24/296830natblock
178.48.59.x/24/286830natblock
178.48.59.x/24/276830natblock
178.48.59.x/24/266830natblock
178.48.59.x/24/256830natblock
178.48.59.x/24/246830natblock
178.48.58.x/24/236830natblock
178.48.57.x/24/226830natblock
178.48.63.x/24/216830natblock
178.48.51.x/24/206830natblock
178.48.43.x/24/196830natblock
178.48.27.x/24/186830natblock
178.48.123.x/24/176830natblock
178.48.187.x/24/166830natblock
178.49.59.x/24/1531200natblock
178.50.59.x/24/1447377natblock
178.52.59.x/24/1329256natblock
178.56.59.x/24/125617natblock
178.32.59.x/24/1116276natblock
178.16.59.x/24/1015817natblock
178.112.59.x/24/925255natblock
178.176.59.x/24/8UNROUTEDnatblock

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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