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Session Report

Summary:
Test run at: 2021-07-06 22:38:24 GMT
Client Prefix (v4): 177.20.215.x/24
Client AS (v4): 262868
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 (177.20.215.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
177.20.215.x/24/31262868natblock
177.20.215.x/24/30262868natblock
177.20.215.x/24/29262868natblock
177.20.215.x/24/28262868natblock
177.20.215.x/24/27262868natblock
177.20.215.x/24/26262868natblock
177.20.215.x/24/25262868natblock
177.20.215.x/24/24262868natblock
177.20.214.x/24/23262868natblock
177.20.213.x/24/22262868natblock
177.20.211.x/24/21262868natblock
177.20.223.x/24/20262868natblock
177.20.199.x/24/19262867natblock
177.20.247.x/24/1853240natblock
177.20.151.x/24/17262857natblock
177.20.87.x/24/1653239natblock
177.21.215.x/24/15262879natblock
177.22.215.x/24/14262902natblock
177.16.215.x/24/1318881natblock
177.28.215.x/24/1226615natblock
177.4.215.x/24/118167natblock
177.52.215.x/24/1052800natblock
177.84.215.x/24/9262535natblock
177.148.215.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 2 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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