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Session Report

Summary:
Test run at: 2019-10-01 16:26:27 GMT
Client Prefix (v4): 102.130.236.x/24
Client AS (v4): 328391 (Rocking-Connect)
IPv4 Probes: 72
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable rewritten
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 (102.130.236.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
102.130.236.x/24/31328391sendto
102.130.236.x/24/30328391sendto
102.130.236.x/24/29328391sendto
102.130.236.x/24/28328391sendto
102.130.236.x/24/27328391sendto
102.130.236.x/24/26328391rewritten
102.130.236.x/24/25328391rewritten
102.130.236.x/24/24328391sendto
102.130.237.x/24/23328391sendto
102.130.238.x/24/22328391sendto
102.130.232.x/24/2121271rewritten
102.130.228.x/24/20UNROUTEDsendto
102.130.252.x/24/19UNROUTEDrewritten
102.130.204.x/24/1837645sendto
102.130.172.x/24/1737634rewritten
102.130.108.x/24/16328068sendto
102.131.236.x/24/1537420sendto
102.128.236.x/24/14328419rewritten
102.134.236.x/24/13328114rewritten
102.138.236.x/24/1236974rewritten
102.146.236.x/24/1137287rewritten
102.162.236.x/24/1030999sendto
102.194.236.x/24/9UNROUTEDsendto
102.2.236.x/24/8UNROUTEDsendto

Meaning of status in Received column:

rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.
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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