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Session Report

Summary:
Test run at: 2017-08-21 08:28:49 GMT
Client Prefix (v4): 202.61.117.x/24
Client AS (v4): 55741 (WBSDC-NET-IN)
IPv4 Probes: 132
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable unknown
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 (202.61.117.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
202.61.117.x/24/3155741natblock
202.61.117.x/24/3055741natblock
202.61.117.x/24/2955741natblock
202.61.117.x/24/2855741natblock
202.61.117.x/24/2755741natblock
202.61.117.x/24/2655741natblock
202.61.117.x/24/2555741natblock
202.61.117.x/24/2455741natblock
202.61.116.x/24/23135024natblock
202.61.119.x/24/22UNROUTEDnatblock
202.61.113.x/24/2155825natblock
202.61.125.x/24/2055661natblock
202.61.101.x/24/1945786natblock
202.61.85.x/24/18133201natblock
202.61.53.x/24/1723966natblock
202.61.245.x/24/1638714natblock
202.60.117.x/24/1537970natblock
202.63.117.x/24/1417771natblock
202.57.117.x/24/137629natblock
202.53.117.x/24/129615natblock
202.45.117.x/24/114802natblock
202.29.117.x/24/104621natblock
202.125.117.x/24/9UNROUTEDnatblock
202.189.117.x/24/84528natblock

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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