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Session Report

Summary:
Test run at: 2021-01-21 08:07:35 GMT
Client Prefix (v4): 116.68.170.x/24
Client AS (v4): 56246 (SDI-AS-ID)
IPv4 Probes: 69
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable received
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.

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


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
116.68.170.x/24/3156246rewritten
116.68.170.x/24/3056246natblock
116.68.170.x/24/2956246rewritten
116.68.170.x/24/2856246rewritten
116.68.170.x/24/2756246rewritten
116.68.170.x/24/2656246rewritten
116.68.170.x/24/2556246rewritten
116.68.170.x/24/2456246rewritten
116.68.171.x/24/2356246rewritten
116.68.168.x/24/2256246rewritten
116.68.174.x/24/2156246rewritten
116.68.162.x/24/2056246rewritten
116.68.186.x/24/1912703rewritten
116.68.138.x/24/18UNROUTEDrewritten
116.68.234.x/24/17UNROUTEDrewritten
116.68.42.x/24/1623552rewritten
116.69.170.x/24/154134rewritten
116.70.170.x/24/144721rewritten
116.64.170.x/24/139824rewritten
116.76.170.x/24/1217962rewritten
116.84.170.x/24/1123908rewritten
116.100.170.x/24/107552rewritten
116.4.170.x/24/9134772rewritten
116.196.170.x/24/8UNROUTEDrewritten

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.
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.

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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