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Session Report

Summary:
Test run at: 2023-09-21 07:18:12 GMT
Client Prefix (v4): 23.158.72.x/24
Client AS (v4): 26042
IPv4 Probes: 69
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.
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 (23.158.72.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
23.158.72.x/24/3126042yes
23.158.72.x/24/3026042yes
23.158.72.x/24/2926042yes
23.158.72.x/24/2826042yes
23.158.72.x/24/2726042yes
23.158.72.x/24/2626042yes
23.158.72.x/24/2526042yes
23.158.72.x/24/2426042yes
23.158.73.x/24/23UNROUTEDyes
23.158.74.x/24/22UNROUTEDyes
23.158.76.x/24/21UNROUTEDyes
23.158.64.x/24/20UNROUTEDyes
23.158.88.x/24/1920473yes
23.158.104.x/24/18197547yes
23.158.8.x/24/17UNROUTEDyes
23.158.200.x/24/1663023yes
23.159.72.x/24/15UNROUTEDyes
23.156.72.x/24/1436083yes
23.154.72.x/24/13395898yes
23.150.72.x/24/12834yes
23.142.72.x/24/11UNROUTEDyes
23.190.72.x/24/10UNROUTEDyes
23.222.72.x/24/99269yes
23.30.72.x/24/87922yes

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)

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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