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Session Report

Summary:
Test run at: 2021-09-14 02:09:28 GMT
Client Prefix (v4): 191.215.255.x/24
Client AS (v4): 7738
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable unknown
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.

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


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
191.215.255.x/24/317738natblock
191.215.255.x/24/307738natblock
191.215.255.x/24/297738natblock
191.215.255.x/24/287738natblock
191.215.255.x/24/277738natblock
191.215.255.x/24/267738natblock
191.215.255.x/24/257738natblock
191.215.255.x/24/247738natblock
191.215.254.x/24/237738natblock
191.215.253.x/24/227738natblock
191.215.251.x/24/217738natblock
191.215.247.x/24/207738natblock
191.215.239.x/24/197738natblock
191.215.223.x/24/187738natblock
191.215.191.x/24/177738natblock
191.215.127.x/24/167738natblock
191.214.255.x/24/157738natblock
191.213.255.x/24/147738natblock
191.211.255.x/24/1326599natblock
191.223.255.x/24/128167natblock
191.199.255.x/24/1126599natblock
191.247.255.x/24/1022085natblock
191.151.255.x/24/926611natblock
191.87.255.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 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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