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Session Report

Summary:
Test run at: 2019-08-07 14:29:46 GMT
Client Prefix (v4): 116.212.138.x/24
Client AS (v4): 38235 (MEKONGNET-ADC-AS-AP)
IPv4 Probes: 96
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 received
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.

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


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
116.212.138.x/24/3138235natblock
116.212.138.x/24/3038235natblock
116.212.138.x/24/2938235yes
116.212.138.x/24/2838235yes
116.212.138.x/24/2738235yes
116.212.138.x/24/2638235yes
116.212.138.x/24/2538235yes
116.212.138.x/24/2438235yes
116.212.139.x/24/2338235yes
116.212.136.x/24/2238235yes
116.212.142.x/24/2138235yes
116.212.130.x/24/2038235yes
116.212.154.x/24/1938235yes
116.212.170.x/24/18UNROUTEDnatblock
116.212.202.x/24/179822yes
116.212.10.x/24/1645361yes
116.213.138.x/24/154808yes
116.214.138.x/24/14UNROUTEDnatblock
116.208.138.x/24/134134yes
116.220.138.x/24/129824yes
116.196.138.x/24/11UNROUTEDnatblock
116.244.138.x/24/10UNROUTEDnatblock
116.148.138.x/24/94837yes
116.84.138.x/24/823908yes

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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