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Session Report

Summary:
Test run at: 2018-08-28 12:21:23 GMT
Client Prefix (v4): 200.130.254.x/24
Client AS (v4): 1916
IPv4 Probes: 124
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 (200.130.254.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
200.130.254.x/24/311916natblock
200.130.254.x/24/301916natblock
200.130.254.x/24/291916natblock
200.130.254.x/24/281916natblock
200.130.254.x/24/271916natblock
200.130.254.x/24/261916natblock
200.130.254.x/24/251916natblock
200.130.254.x/24/241916natblock
200.130.255.x/24/231916natblock
200.130.252.x/24/221916natblock
200.130.250.x/24/211916natblock
200.130.246.x/24/201916natblock
200.130.238.x/24/191916natblock
200.130.222.x/24/181916natblock
200.130.190.x/24/171916natblock
200.130.126.x/24/161916natblock
200.131.254.x/24/151916natblock
200.128.254.x/24/14UNROUTEDnatblock
200.134.254.x/24/1310881natblock
200.138.254.x/24/128167natblock
200.146.254.x/24/1116735natblock
200.162.254.x/24/1019182natblock
200.194.254.x/24/911432natblock
200.2.254.x/24/810778natblock

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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