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Session Report

Summary:
Test run at: 2024-03-25 14:53:57 GMT
Client Prefix (v4): 209.159.209.x/24
Client AS (v4): 20412 (CLARITY-TELECOM)
IPv4 Probes: 66
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 (209.159.209.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
209.159.209.x/24/3120412yes
209.159.209.x/24/3020412yes
209.159.209.x/24/2920412yes
209.159.209.x/24/2820412yes
209.159.209.x/24/2720412yes
209.159.209.x/24/2620412yes
209.159.209.x/24/2520412yes
209.159.209.x/24/2420412yes
209.159.208.x/24/2320412yes
209.159.211.x/24/2220412yes
209.159.213.x/24/2120412yes
209.159.217.x/24/2020412yes
209.159.193.x/24/1920412yes
209.159.241.x/24/1820412yes
209.159.145.x/24/1719318yes
209.159.81.x/24/16UNROUTEDyes
209.158.209.x/24/15701yes
209.157.209.x/24/142914yes
209.155.209.x/24/137029yes
209.151.209.x/24/1223137yes
209.143.209.x/24/1133184yes
209.191.209.x/24/1014371yes
209.223.209.x/24/93561yes
209.31.209.x/24/82828yes

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 9 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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