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Session Report

Summary:
Test run at: 2020-09-10 21:32:25 GMT
Client Prefix (v4): 177.39.154.x/24
Client AS (v4): 262427
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /29
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.
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 (177.39.154.x/24) can spoof 7 neighboring addresses (within your /29 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
177.39.154.x/24/31262427yes
177.39.154.x/24/30262427natblock
177.39.154.x/24/29262427yes
177.39.154.x/24/28262427natblock
177.39.154.x/24/27262427natblock
177.39.154.x/24/26262427natblock
177.39.154.x/24/25262427natblock
177.39.154.x/24/24262427natblock
177.39.155.x/24/23262427natblock
177.39.152.x/24/22262427natblock
177.39.158.x/24/2152772natblock
177.39.146.x/24/20262427natblock
177.39.138.x/24/19262430natblock
177.39.186.x/24/1852770natblock
177.39.218.x/24/1752795natblock
177.39.26.x/24/16262374natblock
177.38.154.x/24/1552751natblock
177.37.154.x/24/1428126natblock
177.35.154.x/24/1328573natblock
177.47.154.x/24/12262281natblock
177.55.154.x/24/11262505natblock
177.7.154.x/24/108167natblock
177.103.154.x/24/927699natblock
177.167.154.x/24/826615natblock

Meaning of status in Received column:

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 2 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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