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Session Report

Summary:
Test run at: 2016-07-04 22:35:18 GMT
Client Prefix (v4): 178.153.7.x/24
Client AS (v4): 42298 (GCC-MPLS-peering)
IPv4 Probes: 104
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 (178.153.7.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
178.153.7.x/24/3142298rewritten
178.153.7.x/24/3042298rewritten
178.153.7.x/24/2942298rewritten
178.153.7.x/24/2842298rewritten
178.153.7.x/24/2742298rewritten
178.153.7.x/24/2642298rewritten
178.153.7.x/24/2542298rewritten
178.153.7.x/24/2442298rewritten
178.153.6.x/24/2342298rewritten
178.153.5.x/24/2242298rewritten
178.153.3.x/24/2142298rewritten
178.153.15.x/24/2042298rewritten
178.153.23.x/24/1942298rewritten
178.153.39.x/24/1842298rewritten
178.153.71.x/24/1742298rewritten
178.153.135.x/24/168781rewritten
178.152.7.x/24/1542298rewritten
178.155.7.x/24/14UNROUTEDrewritten
178.157.7.x/24/1342163rewritten
178.145.7.x/24/125432rewritten
178.137.7.x/24/1115895rewritten
178.185.7.x/24/1012389rewritten
178.217.7.x/24/951003rewritten
178.25.7.x/24/831334rewritten

Meaning of status in Received column:

rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

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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