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Session Report

Summary:
Test run at: 2021-12-04 17:31:30 GMT
Client Prefix (v4): 212.192.216.x/24
Client AS (v4): 399471 (AS-SERVERION)
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 received
Routable received
Largest spoofable neighbor prefix length /8
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 (212.192.216.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
212.192.216.x/24/31399471yes
212.192.216.x/24/30399471yes
212.192.216.x/24/29399471yes
212.192.216.x/24/28399471yes
212.192.216.x/24/27399471yes
212.192.216.x/24/26399471yes
212.192.216.x/24/25399471yes
212.192.216.x/24/24399471yes
212.192.217.x/24/23399471yes
212.192.218.x/24/22399471yes
212.192.220.x/24/21211252yes
212.192.208.x/24/201239yes
212.192.200.x/24/1949505yes
212.192.248.x/24/182856yes
212.192.152.x/24/178663yes
212.192.88.x/24/168684yes
212.193.216.x/24/15UNROUTEDyes
212.194.216.x/24/145410yes
212.196.216.x/24/13UNROUTEDyes
212.200.216.x/24/128400yes
212.208.216.x/24/11702yes
212.224.216.x/24/1047377yes
212.128.216.x/24/9766yes
212.64.216.x/24/861135yes

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)

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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