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Session Report

Summary:
Test run at: 2024-07-07 23:17:34 GMT
Client Prefix (v4): 198.46.129.x/24
Client AS (v4): 36352 (AS-COLOCROSSING)
IPv4 Probes: 69
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /21
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 (198.46.129.x/24) can spoof 2047 neighboring addresses (within your /21 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
198.46.129.x/24/3136352yes
198.46.129.x/24/3036352yes
198.46.129.x/24/2936352yes
198.46.129.x/24/2836352yes
198.46.129.x/24/2736352yes
198.46.129.x/24/2636352yes
198.46.129.x/24/2536352yes
198.46.129.x/24/2436352yes
198.46.128.x/24/2336352yes
198.46.131.x/24/2236352yes
198.46.133.x/24/2136352yes
198.46.137.x/24/2036352no
198.46.145.x/24/1936352no
198.46.161.x/24/1836352no
198.46.193.x/24/1736352no
198.46.1.x/24/16UNROUTEDno
198.47.129.x/24/1510405no
198.44.129.x/24/1411878no
198.42.129.x/24/1322463no
198.38.129.x/24/12749no
198.62.129.x/24/11UNROUTEDno
198.14.129.x/24/10UNROUTEDno
198.110.129.x/24/9237no
198.174.129.x/24/85006no

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
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 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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