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Session Report

Summary:
Test run at: 2023-07-20 18:10:15 GMT
Client Prefix (v4): 177.85.234.x/24
Client AS (v4): 262617
IPv4 Probes: 60
Client Prefix (v6): 2804:90c:7xx::/40
Client AS (v6): 262617
IPv6 Probes: 52
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable receivedblocked
Largest spoofable neighbor prefix length /8/56
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 (177.85.234.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
177.85.234.x/24/31262617yes
177.85.234.x/24/30262617yes
177.85.234.x/24/29262617yes
177.85.234.x/24/28262617yes
177.85.234.x/24/27262617yes
177.85.234.x/24/26262617yes
177.85.234.x/24/25262617yes
177.85.234.x/24/24262617yes
177.85.235.x/24/23262617yes
177.85.232.x/24/22262617yes
177.85.238.x/24/21271171yes
177.85.226.x/24/20262616yes
177.85.250.x/24/19263558yes
177.85.202.x/24/1852554yes
177.85.170.x/24/17262613yes
177.85.106.x/24/16UNROUTEDno
177.84.234.x/24/15262605yes
177.87.234.x/24/1452593yes
177.81.234.x/24/1328573yes
177.93.234.x/24/1228663yes
177.69.234.x/24/1116735yes
177.117.234.x/24/1026599yes
177.21.234.x/24/911835yes
177.213.234.x/24/826599yes

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
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 able to spoof routable, non-adjacent source addresses through the first 10 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::1592001:40b0:7500:280::5458:517ano
2001:4978:1fb:6400::d22001:40b0:7500:280::5458:517ano
2001:49aa:111:aa00::112001:40b0:7500:280::5458:517ano
fd11:1111:1111::11112001:40b0:7500:280::5458:517ano
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
2804:90c:7xx::/40/120262617yes
2804:90c:7xx::/40/112262617yes
2804:90c:7xx::/40/104262617yes
2804:90c:7xx::/40/96262617yes
2804:90c:7xx::/40/88262617yes
2804:90c:7xx::/40/80262617yes
2804:90c:7xx::/40/72262617yes
2804:90c:7xx::/40/64262617yes
2804:90c:7xx::/40/56262617yes
2804:90c:7xx::/40/48262617no
2804:90c:7xx::/40/40262617no
2804:90c:87xx::/40/32UNROUTEDno
2804:98c:7xx::/40/24263099no
2804:890c:7xx::/40/16273577no

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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