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Session Report

Summary:
Test run at: 2022-02-21 21:04:08 GMT
Client Prefix (v4): 186.103.211.x/24
Client AS (v4): 15311
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable received
Largest spoofable neighbor prefix length /8
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 (186.103.211.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
186.103.211.x/24/3115311yes
186.103.211.x/24/3015311yes
186.103.211.x/24/2915311yes
186.103.211.x/24/2815311yes
186.103.211.x/24/2715311yes
186.103.211.x/24/2615311yes
186.103.211.x/24/2515311yes
186.103.211.x/24/2415311yes
186.103.210.x/24/2315311yes
186.103.209.x/24/2215311yes
186.103.215.x/24/2115311yes
186.103.219.x/24/2015311yes
186.103.195.x/24/1915311yes
186.103.243.x/24/187004yes
186.103.147.x/24/1715311yes
186.103.83.x/24/16UNROUTEDno
186.102.211.x/24/15UNROUTEDno
186.101.211.x/24/1427947yes
186.99.211.x/24/133816yes
186.111.211.x/24/127303yes
186.119.211.x/24/113816yes
186.71.211.x/24/1014522yes
186.39.211.x/24/922927yes
186.231.211.x/24/826615yes

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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