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Session Report

Summary:
Test run at: 2019-09-21 13:16:14 GMT
Client Prefix (v4): 177.190.168.x/24
Client AS (v4): 263459
IPv4 Probes: 72
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
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 (177.190.168.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
177.190.168.x/24/31263459yes
177.190.168.x/24/30263459yes
177.190.168.x/24/29263459natblock
177.190.168.x/24/28263459yes
177.190.168.x/24/27263459yes
177.190.168.x/24/26263459yes
177.190.168.x/24/25263459yes
177.190.168.x/24/24263459yes
177.190.169.x/24/23263459yes
177.190.170.x/24/22263459yes
177.190.172.x/24/21263459yes
177.190.160.x/24/20263458yes
177.190.184.x/24/19263462yes
177.190.136.x/24/18263453yes
177.190.232.x/24/17263465yes
177.190.40.x/24/1628151yes
177.191.168.x/24/1553006yes
177.188.168.x/24/1427699yes
177.186.168.x/24/1326615yes
177.182.168.x/24/1228573yes
177.174.168.x/24/1126599yes
177.158.168.x/24/1018881yes
177.254.168.x/24/927831yes
177.62.168.x/24/826599yes

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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