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Session Report

Summary:
Test run at: 2022-07-20 14:32:41 GMT
Client Prefix (v4): 82.135.80.x/24
Client AS (v4): 8767 (MNET-AS)
IPv4 Probes: 60
Client Prefix (v6): 2001:a61:10xx::/40
Client AS (v6): 8767 (MNET-AS)
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 none/56
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 (82.135.80.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
82.135.80.x/24/318767natblock
82.135.80.x/24/308767natblock
82.135.80.x/24/298767natblock
82.135.80.x/24/288767natblock
82.135.80.x/24/278767natblock
82.135.80.x/24/268767natblock
82.135.80.x/24/258767natblock
82.135.80.x/24/248767natblock
82.135.81.x/24/238767natblock
82.135.82.x/24/228767natblock
82.135.84.x/24/218767natblock
82.135.88.x/24/208767natblock
82.135.64.x/24/198767natblock
82.135.112.x/24/188767natblock
82.135.16.x/24/178767natblock
82.135.208.x/24/168764natblock
82.134.80.x/24/158542natblock
82.133.80.x/24/149105natblock
82.131.80.x/24/132586natblock
82.143.80.x/24/126848natblock
82.151.80.x/24/1129544natblock
82.167.80.x/24/1035753natblock
82.199.80.x/24/915830natblock
82.7.80.x/24/85089natblock

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::1592001:48d0:101:501::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
2001:a61:10xx::/40/1208767yes
2001:a61:10xx::/40/1128767yes
2001:a61:10xx::/40/1048767yes
2001:a61:10xx::/40/968767yes
2001:a61:10xx::/40/888767yes
2001:a61:10xx::/40/808767yes
2001:a61:10xx::/40/728767yes
2001:a61:10xx::/40/648767yes
2001:a61:10xx::/40/568767yes
2001:a61:10xx::/40/488767no
2001:a61:10xx::/40/408767no
2001:a61:90xx::/40/328767no
2001:ae1:10xx::/40/2442008no
2001:8a61:10xx::/40/161221no

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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