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Session Report

Summary:
Test run at: 2023-02-25 18:28:13 GMT
Client Prefix (v4): 141.11.127.x/24
Client AS (v4): 211376 (SERVERSCITY)
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 /30
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 (141.11.127.x/24) can spoof 3 neighboring addresses (within your /30 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
141.11.127.x/24/31211376no
141.11.127.x/24/30211376yes
141.11.127.x/24/29211376no
141.11.127.x/24/28211376no
141.11.127.x/24/27211376no
141.11.127.x/24/26211376no
141.11.127.x/24/25211376no
141.11.127.x/24/24211376no
141.11.126.x/24/23212335no
141.11.125.x/24/22211585no
141.11.123.x/24/2161138no
141.11.119.x/24/2019437no
141.11.111.x/24/19UNROUTEDno
141.11.95.x/24/1854641no
141.11.63.x/24/17205817no
141.11.255.x/24/16UNROUTEDno
141.10.127.x/24/15553no
141.9.127.x/24/14680no
141.15.127.x/24/1313128no
141.3.127.x/24/1234878no
141.27.127.x/24/11680no
141.43.127.x/24/10680no
141.75.127.x/24/9680no
141.139.127.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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