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Session Report

Summary:
Test run at: 2020-01-20 12:01:49 GMT
Client Prefix (v4): 103.48.83.x/24
Client AS (v4): 135905 (VNPT-AS-VN)
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable received
Largest spoofable neighbor prefix length /9
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 (103.48.83.x/24) can spoof 8388607 neighboring addresses (within your /9 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
103.48.83.x/24/31135905yes
103.48.83.x/24/30135905yes
103.48.83.x/24/29135905yes
103.48.83.x/24/28135905yes
103.48.83.x/24/27135905yes
103.48.83.x/24/26135905yes
103.48.83.x/24/25135905yes
103.48.83.x/24/24135905yes
103.48.82.x/24/23135905yes
103.48.81.x/24/22135905yes
103.48.87.x/24/21UNROUTEDno
103.48.91.x/24/2063935yes
103.48.67.x/24/1945235yes
103.48.115.x/24/18UNROUTEDno
103.48.19.x/24/1763932yes
103.48.211.x/24/16133934yes
103.49.83.x/24/1543519yes
103.50.83.x/24/1423860yes
103.52.83.x/24/13UNROUTEDno
103.56.83.x/24/12UNROUTEDno
103.32.83.x/24/11UNROUTEDno
103.16.83.x/24/10UNROUTEDno
103.112.83.x/24/9135756yes
103.176.83.x/24/8UNROUTEDno

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
yesPackets spoofed from adjacent netblock were received
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 10 IP hop(s).
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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