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Session Report

Summary:
Test run at: 2023-05-14 05:13:02 GMT
Client Prefix (v4): 82.78.21.x/24
Client AS (v4): 8708 (RCS-RDS)
IPv4 Probes: 60
Client Prefix (v6): 2a02:2f08:ecxx::/40
Client AS (v6): 8708 (RCS-RDS)
IPv6 Probes: 52
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedreceived
Routable blockedreceived
Largest spoofable neighbor prefix length none/16
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 (82.78.21.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
82.78.21.x/24/318708natblock
82.78.21.x/24/308708natblock
82.78.21.x/24/298708natblock
82.78.21.x/24/288708natblock
82.78.21.x/24/278708natblock
82.78.21.x/24/268708natblock
82.78.21.x/24/258708natblock
82.78.21.x/24/248708natblock
82.78.20.x/24/238708natblock
82.78.23.x/24/228708natblock
82.78.17.x/24/218708natblock
82.78.29.x/24/208708natblock
82.78.5.x/24/198708natblock
82.78.53.x/24/188708natblock
82.78.85.x/24/178708natblock
82.78.149.x/24/168708natblock
82.79.21.x/24/158708natblock
82.76.21.x/24/148708natblock
82.74.21.x/24/1333915natblock
82.70.21.x/24/1213037natblock
82.94.21.x/24/113265natblock
82.110.21.x/24/103257natblock
82.14.21.x/24/95089natblock
82.206.21.x/24/820640natblock

Meaning of status in Received column:

natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

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::1592001:40b0:7500:280::5458:517ayes
2001:4978:1fb:6400::d22001:40b0:7500:280::5458:517ayes
2001:49aa:111:aa00::112001:40b0:7500:280::5458:517ayes
fd11:1111:1111::11112001:40b0:7500:280::5458:517ayes
2001:48d0:101:501::1592001:48d0:101:501::242yes
2001:4978:1fb:6400::d22001:48d0:101:501::242yes
2001:49aa:111:aa00::112001:48d0:101:501::242yes
fd11:1111:1111::11112001:48d0:101:501::242yes
2001:48d0:101:501::1592001:48d0:101:501::247yes
2001:4978:1fb:6400::d22001:48d0:101:501::247yes
2001:49aa:111:aa00::112001:48d0:101:501::247yes
fd11:1111:1111::11112001:48d0:101:501::247yes
2001:48d0:101:501::1592001:610:510:115:192:42:115:98yes
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:45a6yes
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:acb4yes
2001:4978:1fb:6400::d22001:770:1c:7:225:90ff:fe0c:acb4yes
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4yes
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
2a02:2f08:ecxx::/40/1208708yes
2a02:2f08:ecxx::/40/1128708yes
2a02:2f08:ecxx::/40/1048708yes
2a02:2f08:ecxx::/40/968708yes
2a02:2f08:ecxx::/40/888708yes
2a02:2f08:ecxx::/40/808708yes
2a02:2f08:ecxx::/40/728708yes
2a02:2f08:ecxx::/40/648708yes
2a02:2f08:ecxx::/40/568708yes
2a02:2f08:ecxx::/40/488708yes
2a02:2f08:ecxx::/40/408708yes
2a02:2f08:6cxx::/40/328708yes
2a02:2f88:ecxx::/40/24UNROUTEDyes
2a02:af08:ecxx::/40/16UNROUTEDyes

Meaning of status in Received column:

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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