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Session Report

Summary:
Test run at: 2022-02-25 10:22:13 GMT
Client Prefix (v4): 193.93.90.x/24
Client AS (v4): 39566 (TRUSTNET-PL-AS)
IPv4 Probes: 60
Client Prefix (v6): 2001:678:6xx::/40
Client AS (v6): 39566 (TRUSTNET-PL-AS)
IPv6 Probes: 56
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 nonenone
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 (193.93.90.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
193.93.90.x/24/3139566natblock
193.93.90.x/24/3039566natblock
193.93.90.x/24/2939566natblock
193.93.90.x/24/2839566natblock
193.93.90.x/24/2739566natblock
193.93.90.x/24/2639566natblock
193.93.90.x/24/2539566natblock
193.93.90.x/24/2439566natblock
193.93.91.x/24/2339566natblock
193.93.88.x/24/2239566natblock
193.93.94.x/24/2113000natblock
193.93.82.x/24/20UNROUTEDnatblock
193.93.74.x/24/1943451natblock
193.93.122.x/24/1849897natblock
193.93.26.x/24/1749040natblock
193.93.218.x/24/1649824natblock
193.92.90.x/24/151241natblock
193.95.90.x/24/1431245natblock
193.89.90.x/24/133292natblock
193.85.90.x/24/1213036natblock
193.77.90.x/24/115603natblock
193.125.90.x/24/1012430natblock
193.29.90.x/24/912625natblock
193.221.90.x/24/821150natblock

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 able to spoof routable, non-adjacent source addresses through the first 1 IP hop(s).
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
2001:678:6xx::/40/12039566no
2001:678:6xx::/40/11239566no
2001:678:6xx::/40/10439566no
2001:678:6xx::/40/9639566no
2001:678:6xx::/40/8839566no
2001:678:6xx::/40/8039566no
2001:678:6xx::/40/7239566no
2001:678:6xx::/40/6439566no
2001:678:6xx::/40/5639566no
2001:678:6xx::/40/4839566no
2001:678:6xx::/40/40202592no
2001:678:86xx::/40/32UNROUTEDno
2001:6f8:6xx::/40/244589no
2001:8678:6xx::/40/161221no

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
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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