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Session Report

Summary:
Test run at: 2017-05-28 11:50:00 GMT
Client Prefix (v4): 49.207.176.x/24
Client AS (v4): 24309 (CABLELITE-AS-AP)
IPv4 Probes: 118
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 (49.207.176.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
49.207.176.x/24/3124309rewritten
49.207.176.x/24/3024309rewritten
49.207.176.x/24/2924309rewritten
49.207.176.x/24/2824309rewritten
49.207.176.x/24/2724309rewritten
49.207.176.x/24/2624309rewritten
49.207.176.x/24/2524309rewritten
49.207.176.x/24/2424309rewritten
49.207.177.x/24/2324309rewritten
49.207.178.x/24/2224309rewritten
49.207.180.x/24/2124309rewritten
49.207.184.x/24/2024309rewritten
49.207.160.x/24/1955577rewritten
49.207.144.x/24/18UNROUTEDrewritten
49.207.240.x/24/17131269rewritten
49.207.48.x/24/1624309rewritten
49.206.176.x/24/15UNROUTEDrewritten
49.205.176.x/24/1418209rewritten
49.203.176.x/24/1355441rewritten
49.199.176.x/24/124804rewritten
49.223.176.x/24/119395rewritten
49.239.176.x/24/104663rewritten
49.143.176.x/24/938684rewritten
49.79.176.x/24/84134rewritten

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 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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