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Session Report

Summary:
Test run at: 2021-09-19 14:31:40 GMT
Client Prefix (v4): 103.83.159.x/24
Client AS (v4): 17831 (CENTERHOP-SG)
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

Meaning of result status in column:

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


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
103.83.159.x/24/3117831no
103.83.159.x/24/3017831no
103.83.159.x/24/2917831no
103.83.159.x/24/2817831no
103.83.159.x/24/2717831no
103.83.159.x/24/2617831no
103.83.159.x/24/2517831no
103.83.159.x/24/2417831no
103.83.158.x/24/2317831no
103.83.157.x/24/2217831no
103.83.155.x/24/2158659no
103.83.151.x/24/20UNROUTEDno
103.83.143.x/24/19UNROUTEDno
103.83.191.x/24/18136210no
103.83.223.x/24/1758965no
103.83.31.x/24/16UNROUTEDno
103.82.159.x/24/15135852no
103.81.159.x/24/14135848no
103.87.159.x/24/13UNROUTEDno
103.91.159.x/24/12133929no
103.67.159.x/24/1145245no
103.115.159.x/24/10137842no
103.19.159.x/24/9UNROUTEDno
103.211.159.x/24/8UNROUTEDno

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking

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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