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Session Report

Summary:
Test run at: 2022-03-17 11:13:11 GMT
Client Prefix (v4): 102.39.56.x/24
Client AS (v4): 11845 (Vox-Telecom)
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable blocked
Largest spoofable neighbor prefix length none
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.

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


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
102.39.56.x/24/3111845natblock
102.39.56.x/24/3011845natblock
102.39.56.x/24/2911845natblock
102.39.56.x/24/2811845natblock
102.39.56.x/24/2711845natblock
102.39.56.x/24/2611845natblock
102.39.56.x/24/2511845natblock
102.39.56.x/24/2411845natblock
102.39.57.x/24/2311845natblock
102.39.58.x/24/2211845natblock
102.39.60.x/24/2111845natblock
102.39.48.x/24/2011845natblock
102.39.40.x/24/1911845natblock
102.39.24.x/24/1811845natblock
102.39.120.x/24/1711845natblock
102.39.184.x/24/1611845natblock
102.38.56.x/24/1537004natblock
102.37.56.x/24/148075natblock
102.35.56.x/24/1337002natblock
102.47.56.x/24/128452natblock
102.55.56.x/24/116713natblock
102.7.56.x/24/1036926natblock
102.103.56.x/24/936925natblock
102.167.56.x/24/812455natblock

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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