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Session Report

Summary:
Test run at: 2017-09-20 20:33:36 GMT
Client Prefix (v4): 31.200.179.x/24
Client AS (v4): 34218 (H3GIE)
IPv4 Probes: 116
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 (31.200.179.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
31.200.179.x/24/3134218rewritten
31.200.179.x/24/3034218rewritten
31.200.179.x/24/2934218rewritten
31.200.179.x/24/2834218rewritten
31.200.179.x/24/2734218rewritten
31.200.179.x/24/2634218rewritten
31.200.179.x/24/2534218rewritten
31.200.179.x/24/2434218rewritten
31.200.178.x/24/2334218rewritten
31.200.177.x/24/2234218rewritten
31.200.183.x/24/2134218rewritten
31.200.187.x/24/2034218rewritten
31.200.163.x/24/1934218rewritten
31.200.147.x/24/1834218rewritten
31.200.243.x/24/1760494rewritten
31.200.51.x/24/1612978rewritten
31.201.179.x/24/1550266rewritten
31.202.179.x/24/1434700rewritten
31.204.179.x/24/1339578rewritten
31.192.179.x/24/1235154rewritten
31.216.179.x/24/11196660rewritten
31.232.179.x/24/103320rewritten
31.136.179.x/24/915480rewritten
31.72.179.x/24/812576rewritten

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 5 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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