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Session Report

Summary:
Test run at: 2022-05-29 23:36:27 GMT
Client Prefix (v4): 103.176.189.x/24
Client AS (v4): 149794
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable unknown
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 (103.176.189.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
103.176.189.x/24/31149794sendto
103.176.189.x/24/30149794sendto
103.176.189.x/24/29149794sendto
103.176.189.x/24/28149794sendto
103.176.189.x/24/27149794sendto
103.176.189.x/24/26149794sendto
103.176.189.x/24/25149794natblock
103.176.189.x/24/24149794sendto
103.176.188.x/24/23UNROUTEDsendto
103.176.191.x/24/22147278sendto
103.176.185.x/24/21138754sendto
103.176.181.x/24/20147133sendto
103.176.173.x/24/19UNROUTEDsendto
103.176.157.x/24/18138264sendto
103.176.253.x/24/17UNROUTEDsendto
103.176.61.x/24/16UNROUTEDsendto
103.177.189.x/24/15UNROUTEDsendto
103.178.189.x/24/14149312sendto
103.180.189.x/24/13149366sendto
103.184.189.x/24/12400171sendto
103.160.189.x/24/11141513sendto
103.144.189.x/24/10139537sendto
103.240.189.x/24/9UNROUTEDsendto
103.48.189.x/24/8135905sendto

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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