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Session Report

Summary:
Test run at: 2019-09-03 09:26:30 GMT
Client Prefix (v4): 116.251.187.x/24
Client AS (v4): 55850 (TRUSTPOWERLTD-AS-AP)
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 received
Routable received
Largest spoofable neighbor prefix length /8

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 (116.251.187.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
116.251.187.x/24/3155850natblock
116.251.187.x/24/3055850natblock
116.251.187.x/24/2955850yes
116.251.187.x/24/2855850yes
116.251.187.x/24/2755850yes
116.251.187.x/24/2655850yes
116.251.187.x/24/2555850yes
116.251.187.x/24/2455850yes
116.251.186.x/24/2355850yes
116.251.185.x/24/2255850yes
116.251.191.x/24/2155850yes
116.251.179.x/24/2055850yes
116.251.171.x/24/1955850yes
116.251.155.x/24/1855850yes
116.251.251.x/24/17133771yes
116.251.59.x/24/1624033yes
116.250.187.x/24/1524033yes
116.249.187.x/24/144134yes
116.255.187.x/24/1337943yes
116.243.187.x/24/124847yes
116.235.187.x/24/114812yes
116.219.187.x/24/10UNROUTEDyes
116.187.187.x/24/9UNROUTEDyes
116.123.187.x/24/89318yes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

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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