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Session Report

Summary:
Test run at: 2017-06-22 07:22:18 GMT
Client Prefix (v4): 121.73.13.x/24
Client AS (v4): 4768 (VFNZ-INET-AS)
IPv4 Probes: 118
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.
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 (121.73.13.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
121.73.13.x/24/314768sendto
121.73.13.x/24/304768sendto
121.73.13.x/24/294768sendto
121.73.13.x/24/284768sendto
121.73.13.x/24/274768sendto
121.73.13.x/24/264768sendto
121.73.13.x/24/254768sendto
121.73.13.x/24/244768sendto
121.73.12.x/24/234768sendto
121.73.15.x/24/224768sendto
121.73.9.x/24/214768sendto
121.73.5.x/24/204768sendto
121.73.29.x/24/194768sendto
121.73.45.x/24/184768sendto
121.73.77.x/24/174768sendto
121.73.141.x/24/164768sendto
121.72.13.x/24/154768sendto
121.75.13.x/24/149500sendto
121.77.13.x/24/139812sendto
121.65.13.x/24/123786sendto
121.89.13.x/24/11UNROUTEDsendto
121.105.13.x/24/102516sendto
121.9.13.x/24/9134764sendto
121.201.13.x/24/858543sendto

Meaning of status in Received column:

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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