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Session Report

Summary:
Test run at: 2019-10-25 10:12:49 GMT
Client Prefix (v4): 151.236.22.x/24
Client AS (v4): 35017
IPv4 Probes: 75
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 (151.236.22.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
151.236.22.x/24/3135017natblock
151.236.22.x/24/3035017natblock
151.236.22.x/24/2935017natblock
151.236.22.x/24/2835017natblock
151.236.22.x/24/2735017natblock
151.236.22.x/24/2635017natblock
151.236.22.x/24/2535017natblock
151.236.22.x/24/2435017sendto
151.236.23.x/24/2339020natblock
151.236.20.x/24/2257169natblock
151.236.18.x/24/2120836natblock
151.236.30.x/24/2057169natblock
151.236.6.x/24/1957169natblock
151.236.54.x/24/1829550natblock
151.236.86.x/24/1757363natblock
151.236.150.x/24/1659599natblock
151.237.22.x/24/1541782natblock
151.238.22.x/24/1431549natblock
151.232.22.x/24/1358224natblock
151.228.22.x/24/125607natblock
151.252.22.x/24/11UNROUTEDnatblock
151.204.22.x/24/10701natblock
151.172.22.x/24/9UNROUTEDnatblock
151.108.22.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.
sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

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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