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Session Report

Summary:
Test run at: 2020-02-29 12:43:47 GMT
Client Prefix (v4): 45.70.117.x/24
Client AS (v4): 265824
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable received
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 (45.70.117.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
45.70.117.x/24/31265824natblock
45.70.117.x/24/30265824natblock
45.70.117.x/24/29265824rewritten
45.70.117.x/24/28265824rewritten
45.70.117.x/24/27265824rewritten
45.70.117.x/24/26265824rewritten
45.70.117.x/24/25265824rewritten
45.70.117.x/24/24265824rewritten
45.70.116.x/24/23265824rewritten
45.70.119.x/24/22265824rewritten
45.70.113.x/24/21267561rewritten
45.70.125.x/24/20267562rewritten
45.70.101.x/24/19267567rewritten
45.70.85.x/24/18267593rewritten
45.70.53.x/24/17267579rewritten
45.70.245.x/24/16267598rewritten
45.71.117.x/24/15267605rewritten
45.68.117.x/24/14UNROUTEDrewritten
45.66.117.x/24/13397796rewritten
45.78.117.x/24/1223252rewritten
45.86.117.x/24/11203501rewritten
45.102.117.x/24/1037069rewritten
45.6.117.x/24/9266157rewritten
45.198.117.x/24/8328170rewritten

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.
rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 10 IP hop(s).
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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