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Session Report

Summary:
Test run at: 2017-03-10 12:50:11 GMT
Client Prefix (v4): 177.129.15.x/24
Client AS (v4): 27720
IPv4 Probes: 90
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
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.
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 (177.129.15.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
177.129.15.x/24/3127720natblock
177.129.15.x/24/3027720natblock
177.129.15.x/24/2927720natblock
177.129.15.x/24/2827720natblock
177.129.15.x/24/2727720natblock
177.129.15.x/24/2627720natblock
177.129.15.x/24/2527720natblock
177.129.15.x/24/2427720natblock
177.129.14.x/24/2327720natblock
177.129.13.x/24/2227720natblock
177.129.11.x/24/2127720natblock
177.129.7.x/24/20262383natblock
177.129.31.x/24/19263266natblock
177.129.47.x/24/1828257natblock
177.129.79.x/24/17263630natblock
177.129.143.x/24/16263584natblock
177.128.15.x/24/15262444natblock
177.131.15.x/24/14262375natblock
177.133.15.x/24/1318881natblock
177.137.15.x/24/1253240natblock
177.145.15.x/24/1126599natblock
177.161.15.x/24/1026599natblock
177.193.15.x/24/928573natblock
177.1.15.x/24/88167natblock

Meaning of status in Received column:

natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

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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