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Session Report

Summary:
Test run at: 2019-08-09 12:51:24 GMT
Client Prefix (v4): 200.7.2.x/24
Client AS (v4): 262657
IPv4 Probes: 96
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 (200.7.2.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
200.7.2.x/24/31262657natblock
200.7.2.x/24/30262657natblock
200.7.2.x/24/29262657natblock
200.7.2.x/24/28262657natblock
200.7.2.x/24/27262657natblock
200.7.2.x/24/26262657natblock
200.7.2.x/24/25262657natblock
200.7.2.x/24/24262657natblock
200.7.3.x/24/23262657natblock
200.7.0.x/24/22262657natblock
200.7.6.x/24/2127678natblock
200.7.10.x/24/2061922natblock
200.7.18.x/24/196471natblock
200.7.34.x/24/1827734natblock
200.7.66.x/24/17UNROUTEDnatblock
200.7.130.x/24/1627770natblock
200.6.2.x/24/15UNROUTEDnatblock
200.5.2.x/24/1423534natblock
200.3.2.x/24/1327957natblock
200.15.2.x/24/122914natblock
200.23.2.x/24/11UNROUTEDnatblock
200.39.2.x/24/107438natblock
200.71.2.x/24/920002natblock
200.135.2.x/24/810715natblock

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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