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Session Report

Summary:
Test run at: 2019-06-25 00:46:02 GMT
Client Prefix (v4): 143.202.212.x/24
Client AS (v4): 52851
IPv4 Probes: 93
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable received
Largest spoofable neighbor prefix length /8

Meaning of result status in column:

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 (143.202.212.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
143.202.212.x/24/3152851yes
143.202.212.x/24/3052851yes
143.202.212.x/24/2952851yes
143.202.212.x/24/2852851yes
143.202.212.x/24/2752851yes
143.202.212.x/24/2652851yes
143.202.212.x/24/2552851yes
143.202.212.x/24/2452851yes
143.202.213.x/24/2352851yes
143.202.214.x/24/2252851yes
143.202.208.x/24/21264631yes
143.202.220.x/24/2052544yes
143.202.196.x/24/1927932yes
143.202.244.x/24/18264073yes
143.202.148.x/24/17262669yes
143.202.84.x/24/16264068yes
143.203.212.x/24/15UNROUTEDnatblock
143.200.212.x/24/143128yes
143.206.212.x/24/1340503yes
143.194.212.x/24/12UNROUTEDnatblock
143.218.212.x/24/11UNROUTEDnatblock
143.234.212.x/24/10786yes
143.138.212.x/24/9747yes
143.74.212.x/24/8721yes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
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 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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