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Session Report

Summary:
Test run at: 2022-08-10 00:05:48 GMT
Client Prefix (v4): 130.217.177.x/24
Client AS (v4): 681 (ERX-KAWAIHIKO-1)
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 none
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 (130.217.177.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
130.217.177.x/24/31681no
130.217.177.x/24/30681no
130.217.177.x/24/29681no
130.217.177.x/24/28681no
130.217.177.x/24/27681no
130.217.177.x/24/26681no
130.217.177.x/24/25681no
130.217.177.x/24/24681no
130.217.176.x/24/23681no
130.217.179.x/24/22681no
130.217.181.x/24/21681no
130.217.185.x/24/20681no
130.217.161.x/24/19681no
130.217.145.x/24/18681no
130.217.241.x/24/17681no
130.217.49.x/24/16681no
130.216.177.x/24/159431no
130.219.177.x/24/1411094no
130.221.177.x/24/1385no
130.209.177.x/24/12786no
130.201.177.x/24/11UNROUTEDno
130.249.177.x/24/10UNROUTEDno
130.153.177.x/24/92907no
130.89.177.x/24/81133no

Meaning of status in Received column:

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

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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