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Session Report

Summary:
Test run at: 2021-12-28 14:01:55 GMT
Client Prefix (v4): 146.19.191.x/24
Client AS (v4): 44592 (SkyLink)
IPv4 Probes: 63
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /26
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 (146.19.191.x/24) can spoof 63 neighboring addresses (within your /26 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
146.19.191.x/24/3144592yes
146.19.191.x/24/3044592yes
146.19.191.x/24/2944592yes
146.19.191.x/24/2844592yes
146.19.191.x/24/2744592yes
146.19.191.x/24/2644592yes
146.19.191.x/24/2544592no
146.19.191.x/24/2444592no
146.19.190.x/24/23212667no
146.19.189.x/24/22UNROUTEDno
146.19.187.x/24/21212667no
146.19.183.x/24/20212667no
146.19.175.x/24/19201341no
146.19.159.x/24/18UNROUTEDno
146.19.255.x/24/17UNROUTEDno
146.19.63.x/24/16201341no
146.18.191.x/24/157726no
146.17.191.x/24/14749no
146.23.191.x/24/137862no
146.27.191.x/24/12UNROUTEDno
146.3.191.x/24/11UNROUTEDno
146.51.191.x/24/10UNROUTEDno
146.83.191.x/24/911340no
146.147.191.x/24/8UNROUTEDno

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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