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Session Report

Summary:
Test run at: 2020-04-15 01:03:20 GMT
Client Prefix (v4): 131.255.84.x/24
Client AS (v4): 264471
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /26
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 (131.255.84.x/24) can spoof 63 neighboring addresses (within your /26 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
131.255.84.x/24/31264471yes
131.255.84.x/24/30264471yes
131.255.84.x/24/29264471yes
131.255.84.x/24/28264471yes
131.255.84.x/24/27264471yes
131.255.84.x/24/26264471yes
131.255.84.x/24/25264471no
131.255.84.x/24/24264471no
131.255.85.x/24/23264471no
131.255.86.x/24/22264471no
131.255.80.x/24/21264470no
131.255.92.x/24/20264475no
131.255.68.x/24/1961942no
131.255.116.x/24/18264478no
131.255.20.x/24/17262271no
131.255.212.x/24/16264498no
131.254.84.x/24/151938no
131.253.84.x/24/148070no
131.251.84.x/24/13786no
131.247.84.x/24/125661no
131.239.84.x/24/1114985no
131.223.84.x/24/10UNROUTEDno
131.191.84.x/24/914677no
131.127.84.x/24/8UNROUTEDno

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)

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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