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Session Report

Summary:
Test run at: 2020-06-10 04:48:02 GMT
Client Prefix (v4): 170.82.220.x/24
Client AS (v4): 266448
IPv4 Probes: 75
Client Prefix (v6): 2804:37fc:f0xx::/40
Client AS (v6): 266448
IPv6 Probes: 68
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenblocked
Routable blockedblocked
Largest spoofable neighbor prefix length /22/48
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.

Warnings:

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 (170.82.220.x/24) can spoof 1023 neighboring addresses (within your /22 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
170.82.220.x/24/31266448yes
170.82.220.x/24/30266448no
170.82.220.x/24/29266448yes
170.82.220.x/24/28266448yes
170.82.220.x/24/27266448yes
170.82.220.x/24/26266448no
170.82.220.x/24/25266448no
170.82.220.x/24/24266448no
170.82.221.x/24/23266448no
170.82.222.x/24/22266448yes
170.82.216.x/24/21263222no
170.82.212.x/24/20266456no
170.82.204.x/24/19266447no
170.82.252.x/24/18266460no
170.82.156.x/24/17264668no
170.82.92.x/24/16262726no
170.83.220.x/24/15264852no
170.80.220.x/24/14265274no
170.86.220.x/24/137726no
170.90.220.x/24/1264208no
170.66.220.x/24/1111993no
170.114.220.x/24/10UNROUTEDno
170.18.220.x/24/916780no
170.210.220.x/24/84270no

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)

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::1592001:770:18:7:225:90ff:fe0c:acb4no
2001:4978:1fb:6400::d22001:770:18:7:225:90ff:fe0c:acb4no
2001:49aa:111:aa00::112001:770:18:7:225:90ff:fe0c:acb4no
fd11:1111:1111::11112001:770:18:7:225:90ff:fe0c:acb4no
2001:48d0:101:501::1592001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:4978:1fb:6400::d22001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:49aa:111:aa00::112001:df0:4:800:21c:c0ff:feb2:ad5fno
fd11:1111:1111::11112001:df0:4:800:21c:c0ff:feb2:ad5fno
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2804:37fc:f0xx::/40/120266448yes
2804:37fc:f0xx::/40/112266448yes
2804:37fc:f0xx::/40/104266448yes
2804:37fc:f0xx::/40/96266448yes
2804:37fc:f0xx::/40/88266448yes
2804:37fc:f0xx::/40/80266448yes
2804:37fc:f0xx::/40/72266448yes
2804:37fc:f0xx::/40/64266448yes
2804:37fc:f0xx::/40/56266448yes
2804:37fc:f0xx::/40/48266448yes
2804:37fc:f0xx::/40/40266448no
2804:37fc:70xx::/40/32266448no
2804:377c:f0xx::/40/24UNROUTEDno
2804:b7fc:f0xx::/40/16UNROUTEDno

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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