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Session Report

Summary:
Test run at: 2021-12-01 02:53:38 GMT
Client Prefix (v4): 202.112.0.x/24
Client AS (v4): 4538 (ERX-CERNET-BKB)
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length none

Meaning of result status in column:

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 (202.112.0.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
202.112.0.x/24/314538no
202.112.0.x/24/304538no
202.112.0.x/24/294538no
202.112.0.x/24/284538no
202.112.0.x/24/274538no
202.112.0.x/24/264538no
202.112.0.x/24/254538no
202.112.0.x/24/244538no
202.112.1.x/24/234538no
202.112.2.x/24/224538no
202.112.4.x/24/214538no
202.112.8.x/24/2024349no
202.112.16.x/24/1924355no
202.112.32.x/24/184538no
202.112.64.x/24/174538no
202.112.128.x/24/164538no
202.113.0.x/24/154538no
202.114.0.x/24/144538no
202.116.0.x/24/134538no
202.120.0.x/24/124538no
202.96.0.x/24/114808no
202.80.0.x/24/104058no
202.48.0.x/24/9UNROUTEDno
202.240.0.x/24/8UNROUTEDno

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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