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Session Report

Summary:
Test run at: 2021-12-09 13:41:17 GMT
Client Prefix (v4): 177.38.28.x/24
Client AS (v4): 262908
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length none

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.
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 (177.38.28.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
177.38.28.x/24/31262908natblock
177.38.28.x/24/30262908natblock
177.38.28.x/24/29262908natblock
177.38.28.x/24/28262908natblock
177.38.28.x/24/27262908natblock
177.38.28.x/24/26262908natblock
177.38.28.x/24/25262908natblock
177.38.28.x/24/24262908natblock
177.38.29.x/24/23262908natblock
177.38.30.x/24/22262908natblock
177.38.24.x/24/21262908natblock
177.38.20.x/24/2052787natblock
177.38.12.x/24/19262893natblock
177.38.60.x/24/1852944natblock
177.38.92.x/24/17262402natblock
177.38.156.x/24/1652751natblock
177.39.28.x/24/15UNROUTEDnatblock
177.36.28.x/24/14271043natblock
177.34.28.x/24/1328573natblock
177.46.28.x/24/1228135natblock
177.54.28.x/24/11262447natblock
177.6.28.x/24/108167natblock
177.102.28.x/24/927699natblock
177.166.28.x/24/826615natblock

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 able to spoof routable, non-adjacent source addresses through the first 1 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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