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Session Report

Summary:
Test run at: 2021-12-27 04:03:28 GMT
Client Prefix (v4): 114.141.99.x/24
Client AS (v4): 45437 (RWTS-AS-AP)
IPv4 Probes: 63
Client Prefix (v6): 2406:a800:xx::/40
Client AS (v6): 45437 (RWTS-AS-AP)
IPv6 Probes: 52
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable blockedblocked
Largest spoofable neighbor prefix length /30/120

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 (114.141.99.x/24) can spoof 3 neighboring addresses (within your /30 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
114.141.99.x/24/3145437yes
114.141.99.x/24/3045437yes
114.141.99.x/24/2945437no
114.141.99.x/24/2845437no
114.141.99.x/24/2745437no
114.141.99.x/24/2645437no
114.141.99.x/24/2545437no
114.141.99.x/24/2445437no
114.141.98.x/24/2345437no
114.141.97.x/24/2245437no
114.141.103.x/24/2145437no
114.141.107.x/24/2045437no
114.141.115.x/24/19138179no
114.141.67.x/24/18UNROUTEDno
114.141.35.x/24/1718092no
114.141.227.x/24/16UNROUTEDno
114.140.99.x/24/159674no
114.143.99.x/24/1417762no
114.137.99.x/24/1317421no
114.133.99.x/24/12UNROUTEDno
114.157.99.x/24/114713no
114.173.99.x/24/104713no
114.205.99.x/24/99318no
114.13.99.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.
IPv6 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.

  

  
IPv6 probes:
Spoofed source addressDestinationReceived
2001:48d0:101:501::1592001:48d0:101:501::242no
2001:4978:1fb:6400::d22001:48d0:101:501::242no
2001:49aa:111:aa00::112001:48d0:101:501::242no
fd11:1111:1111::11112001:48d0:101:501::242no
2001:48d0:101:501::1592001:48d0:101:501::247no
2001:4978:1fb:6400::d22001:48d0:101:501::247no
2001:49aa:111:aa00::112001:48d0:101:501::247no
fd11:1111:1111::11112001:48d0:101:501::247no
2001:48d0:101:501::1592001:610:510:115:192:42:115:98no
2001:4978:1fb:6400::d22001:610:510:115:192:42:115:98no
2001:49aa:111:aa00::112001:610:510:115:192:42:115:98no
fd11:1111:1111::11112001:610:510:115:192:42:115:98no
2001:48d0:101:501::1592001:630:212:225:225:90ff:fe0c:45a6no
2001:4978:1fb:6400::d22001:630:212:225:225:90ff:fe0c:45a6no
2001:49aa:111:aa00::112001:630:212:225:225:90ff:fe0c:45a6no
fd11:1111:1111::11112001:630:212:225:225:90ff:fe0c:45a6no
2001:48d0:101:501::1592001:770:1c:7:225:90ff:fe0c:acb4no
2001:4978:1fb:6400::d22001:770:1c:7:225:90ff:fe0c:acb4no
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4no
fd11:1111:1111::11112001:770:1c:7:225:90ff:fe0c:acb4no
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2406:a800:xx::/40/12045437yes
2406:a800:xx::/40/11245437no
2406:a800:xx::/40/10445437no
2406:a800:xx::/40/9645437no
2406:a800:xx::/40/8845437no
2406:a800:xx::/40/8045437no
2406:a800:xx::/40/7245437no
2406:a800:xx::/40/6445437no
2406:a800:xx::/40/5645437no
2406:a800:xx::/40/4845437no
2406:a800:xx::/40/4045437no
2406:a800:80xx::/40/3245437no
2406:a880:xx::/40/24UNROUTEDno
2406:2800:xx::/40/1618282no

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)
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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