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Session Report

Summary:
Test run at: 2021-12-02 04:20:12 GMT
Client Prefix (v4): 43.245.84.x/24
Client AS (v4): 45650 (VIANET-NP)
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 (43.245.84.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
43.245.84.x/24/3145650yes
43.245.84.x/24/3045650yes
43.245.84.x/24/2945650natblock
43.245.84.x/24/2845650yes
43.245.84.x/24/2745650yes
43.245.84.x/24/2645650yes
43.245.84.x/24/2545650yes
43.245.84.x/24/2445650yes
43.245.85.x/24/2345650yes
43.245.86.x/24/2245650yes
43.245.80.x/24/2158666yes
43.245.92.x/24/2055427yes
43.245.68.x/24/1938880yes
43.245.116.x/24/18UNROUTEDyes
43.245.20.x/24/1745625yes
43.245.212.x/24/1645345yes
43.244.84.x/24/1510013yes
43.247.84.x/24/14UNROUTEDyes
43.241.84.x/24/13UNROUTEDyes
43.253.84.x/24/1217686yes
43.229.84.x/24/1138532yes
43.213.84.x/24/10UNROUTEDyes
43.181.84.x/24/9UNROUTEDyes
43.117.84.x/24/8UNROUTEDyes

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 unable to spoof routable, non-adjacent source addresses through even the first IP hop.
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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