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Session Report

Summary:
Test run at: 2021-08-26 22:06:55 GMT
Client Prefix (v4): 159.48.53.x/24
Client AS (v4): 62240 (Clouvider)
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
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 (159.48.53.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
159.48.53.x/24/3162240natblock
159.48.53.x/24/3062240natblock
159.48.53.x/24/2962240natblock
159.48.53.x/24/2862240natblock
159.48.53.x/24/2762240natblock
159.48.53.x/24/2662240natblock
159.48.53.x/24/2562240natblock
159.48.53.x/24/2462240natblock
159.48.52.x/24/23UNROUTEDnatblock
159.48.55.x/24/2249981natblock
159.48.49.x/24/2157469natblock
159.48.61.x/24/2057469natblock
159.48.37.x/24/19197637natblock
159.48.21.x/24/1857469natblock
159.48.117.x/24/1712033natblock
159.48.181.x/24/1611351natblock
159.49.53.x/24/1529750natblock
159.50.53.x/24/1425215natblock
159.52.53.x/24/134826natblock
159.56.53.x/24/12UNROUTEDnatblock
159.32.53.x/24/11UNROUTEDnatblock
159.16.53.x/24/10262914natblock
159.112.53.x/24/9UNROUTEDnatblock
159.176.53.x/24/8UNROUTEDnatblock

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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