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Session Report

Summary:
Test run at: 2022-06-17 17:42:33 GMT
Client Prefix (v4): 179.108.233.x/24
Client AS (v4): 262691
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /18
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 (179.108.233.x/24) can spoof 16383 neighboring addresses (within your /18 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
179.108.233.x/24/31262691yes
179.108.233.x/24/30262691yes
179.108.233.x/24/29262691yes
179.108.233.x/24/28262691yes
179.108.233.x/24/27262691yes
179.108.233.x/24/26262691yes
179.108.233.x/24/25262691yes
179.108.233.x/24/24262691yes
179.108.232.x/24/23262691yes
179.108.235.x/24/22262691yes
179.108.237.x/24/21262691yes
179.108.225.x/24/20262691yes
179.108.249.x/24/19263276natblock
179.108.201.x/24/18262691yes
179.108.169.x/24/1728642natblock
179.108.105.x/24/1616735natblock
179.109.233.x/24/15263590natblock
179.110.233.x/24/1427699natblock
179.104.233.x/24/1353006natblock
179.100.233.x/24/1226599natblock
179.124.233.x/24/1128360natblock
179.76.233.x/24/1026615natblock
179.44.233.x/24/96306natblock
179.236.233.x/24/87738natblock

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 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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