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Session Report

Summary:
Test run at: 2017-10-11 19:48:20 GMT
Client Prefix (v4): 41.189.160.x/24
Client AS (v4): 30986 (SCANCOM)
IPv4 Probes: 105
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 (41.189.160.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
41.189.160.x/24/3130986rewritten
41.189.160.x/24/3030986rewritten
41.189.160.x/24/2930986rewritten
41.189.160.x/24/2830986rewritten
41.189.160.x/24/2730986rewritten
41.189.160.x/24/2630986rewritten
41.189.160.x/24/2530986rewritten
41.189.160.x/24/2430986rewritten
41.189.161.x/24/2330986rewritten
41.189.162.x/24/2230986rewritten
41.189.164.x/24/2130986rewritten
41.189.168.x/24/2030986rewritten
41.189.176.x/24/1930986rewritten
41.189.128.x/24/18UNROUTEDrewritten
41.189.224.x/24/1730990rewritten
41.189.32.x/24/1629571rewritten
41.188.160.x/24/1537084rewritten
41.191.160.x/24/14UNROUTEDrewritten
41.185.160.x/24/1336943rewritten
41.181.160.x/24/1216637rewritten
41.173.160.x/24/1136937rewritten
41.157.160.x/24/1037168rewritten
41.253.160.x/24/921003rewritten
41.61.160.x/24/836943rewritten

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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