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Session Report

Summary:
Test run at: 2020-06-26 17:10:33 GMT
Client Prefix (v4): 45.5.136.x/24
Client AS (v4): 266098
IPv4 Probes: 75
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 (45.5.136.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
45.5.136.x/24/31266098natblock
45.5.136.x/24/30266098natblock
45.5.136.x/24/29266098yes
45.5.136.x/24/28266098yes
45.5.136.x/24/27266098yes
45.5.136.x/24/26266098yes
45.5.136.x/24/25266098yes
45.5.136.x/24/24266098yes
45.5.137.x/24/23266098yes
45.5.138.x/24/22266098yes
45.5.140.x/24/21266099yes
45.5.128.x/24/20266111yes
45.5.152.x/24/19265676yes
45.5.168.x/24/18266179yes
45.5.200.x/24/17266106yes
45.5.8.x/24/16UNROUTEDyes
45.4.136.x/24/15264677yes
45.7.136.x/24/14265554yes
45.1.136.x/24/13UNROUTEDyes
45.13.136.x/24/126718yes
45.21.136.x/24/117018yes
45.37.136.x/24/1011426yes
45.69.136.x/24/9UNROUTEDyes
45.133.136.x/24/859934yes

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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