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Session Report

Summary:
Test run at: 2023-09-14 22:36:28 GMT
Client Prefix (v4): 37.49.225.x/24
Client AS (v4): 212370 (PEENQ)
IPv4 Probes: 69
Client Prefix (v6): 2a13:adc0:xx::/40
Client AS (v6): 61254 (ITSUPPORT)
IPv6 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA receivedreceived
Routable receivedreceived
Largest spoofable neighbor prefix length /8/16
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 (37.49.225.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
37.49.225.x/24/31212370yes
37.49.225.x/24/30212370yes
37.49.225.x/24/29212370yes
37.49.225.x/24/28212370yes
37.49.225.x/24/27212370yes
37.49.225.x/24/26212370yes
37.49.225.x/24/25212370yes
37.49.225.x/24/24212370yes
37.49.224.x/24/23213371yes
37.49.227.x/24/22211238yes
37.49.229.x/24/21213371yes
37.49.233.x/24/20UNROUTEDyes
37.49.241.x/24/1950572yes
37.49.193.x/24/1821127yes
37.49.161.x/24/1712688yes
37.49.97.x/24/163209yes
37.48.225.x/24/15206347yes
37.51.225.x/24/143320yes
37.53.225.x/24/136849yes
37.57.225.x/24/1213188yes
37.33.225.x/24/1116086yes
37.17.225.x/24/1048324yes
37.113.225.x/24/951035yes
37.177.225.x/24/830722yes

Meaning of status in Received column:

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::1592001:48d0:101:501::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:acb4yes
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a13:adc0:xx::/40/12061254yes
2a13:adc0:xx::/40/11261254yes
2a13:adc0:xx::/40/10461254yes
2a13:adc0:xx::/40/9661254yes
2a13:adc0:xx::/40/8861254yes
2a13:adc0:xx::/40/8061254yes
2a13:adc0:xx::/40/7261254yes
2a13:adc0:xx::/40/6461254yes
2a13:adc0:xx::/40/5661254yes
2a13:adc0:xx::/40/4861254yes
2a13:adc0:xx::/40/40UNROUTEDyes
2a13:adc0:80xx::/40/32UNROUTEDyes
2a13:ad40:xx::/40/24UNROUTEDyes
2a13:2dc0:xx::/40/16198231yes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
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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