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Session Report

Summary:
Test run at: 2018-08-11 01:25:07 GMT
Client Prefix (v4): 41.188.120.x/24
Client AS (v4): 29544 (MAURITEL)
IPv4 Probes: 99
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 (41.188.120.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
41.188.120.x/24/3129544sendto
41.188.120.x/24/3029544sendto
41.188.120.x/24/2929544sendto
41.188.120.x/24/2829544sendto
41.188.120.x/24/2729544sendto
41.188.120.x/24/2629544sendto
41.188.120.x/24/2529544sendto
41.188.120.x/24/2429544sendto
41.188.121.x/24/2329544sendto
41.188.122.x/24/2229544sendto
41.188.124.x/24/2129544sendto
41.188.112.x/24/2029544sendto
41.188.104.x/24/1929544sendto
41.188.88.x/24/1829544sendto
41.188.56.x/24/1737054sendto
41.188.248.x/24/162018sendto
41.189.120.x/24/15UNROUTEDsendto
41.190.120.x/24/1436999rewritten
41.184.120.x/24/1329091sendto
41.180.120.x/24/1236916sendto
41.172.120.x/24/1136937sendto
41.156.120.x/24/1037168sendto
41.252.120.x/24/921003sendto
41.60.120.x/24/830969sendto

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.
sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

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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