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Session Report

Summary:
Test run at: 2022-08-26 07:10:15 GMT
Client Prefix (v4): 203.215.232.x/24
Client AS (v4): 4134 (CHINANET-BACKBONE)
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 (203.215.232.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
203.215.232.x/24/314134sendto
203.215.232.x/24/304134sendto
203.215.232.x/24/294134sendto
203.215.232.x/24/284134sendto
203.215.232.x/24/274134sendto
203.215.232.x/24/264134sendto
203.215.232.x/24/254134sendto
203.215.232.x/24/244134sendto
203.215.233.x/24/234134sendto
203.215.234.x/24/22UNROUTEDsendto
203.215.236.x/24/214134sendto
203.215.224.x/24/2023786sendto
203.215.248.x/24/199925sendto
203.215.200.x/24/183786sendto
203.215.168.x/24/1717787sendto
203.215.104.x/24/166648sendto
203.214.232.x/24/159328no
203.213.232.x/24/1424033sendto
203.211.232.x/24/137671sendto
203.223.232.x/24/12UNROUTEDsendto
203.199.232.x/24/114755sendto
203.247.232.x/24/104766sendto
203.151.232.x/24/94618sendto
203.87.232.x/24/810139sendto

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

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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