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Session Report

Summary:
Test run at: 2017-07-30 23:10:14 GMT
Client Prefix (v4): 203.114.191.x/24
Client AS (v4): 17705 (INSPIRENET-AS-AP)
IPv4 Probes: 117
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 (203.114.191.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
203.114.191.x/24/3117705natblock
203.114.191.x/24/3017705natblock
203.114.191.x/24/2917705natblock
203.114.191.x/24/2817705natblock
203.114.191.x/24/2717705natblock
203.114.191.x/24/2617705natblock
203.114.191.x/24/2517705natblock
203.114.191.x/24/2417705natblock
203.114.190.x/24/2317705natblock
203.114.189.x/24/2217705natblock
203.114.187.x/24/2117705natblock
203.114.183.x/24/2017705natblock
203.114.175.x/24/1917705natblock
203.114.159.x/24/1817705natblock
203.114.255.x/24/17UNROUTEDnatblock
203.114.63.x/24/1610026natblock
203.115.191.x/24/156648natblock
203.112.191.x/24/149226natblock
203.118.191.x/24/139500natblock
203.122.191.x/24/1238333natblock
203.98.191.x/24/1117444natblock
203.82.191.x/24/104857natblock
203.50.191.x/24/91221natblock
203.242.191.x/24/87557natblock

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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