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Session Report

Summary:
Test run at: 2020-01-03 21:15:04 GMT
Client Prefix (v4): 170.80.157.x/24
Client AS (v4): 266388
IPv4 Probes: 75
Client Prefix (v6): 2804:3714:40xx::/40
Client AS (v6): 266388
IPv6 Probes: 72
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenreceived
Routable rewrittenreceived
Largest spoofable neighbor prefix length none/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.

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 (170.80.157.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
170.80.157.x/24/31266388rewritten
170.80.157.x/24/30266388rewritten
170.80.157.x/24/29266388rewritten
170.80.157.x/24/28266388rewritten
170.80.157.x/24/27266388rewritten
170.80.157.x/24/26266388rewritten
170.80.157.x/24/25266388rewritten
170.80.157.x/24/24266388rewritten
170.80.156.x/24/23266388rewritten
170.80.159.x/24/22266388rewritten
170.80.153.x/24/21262765rewritten
170.80.149.x/24/2028668rewritten
170.80.141.x/24/19264819rewritten
170.80.189.x/24/18266390rewritten
170.80.221.x/24/17265274rewritten
170.80.29.x/24/16265524rewritten
170.81.157.x/24/15266414rewritten
170.82.157.x/24/14264668rewritten
170.84.157.x/24/13264998rewritten
170.88.157.x/24/12UNROUTEDrewritten
170.64.157.x/24/11UNROUTEDrewritten
170.112.157.x/24/10UNROUTEDrewritten
170.16.157.x/24/93762rewritten
170.208.157.x/24/811188rewritten

Meaning of status in Received column:

rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

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::1592001:40b0:7500:280::5458:517ayes
2001:4978:1fb:6400::d22001:40b0:7500:280::5458:517ayes
2001:49aa:111:aa00::112001:40b0:7500:280::5458:517ayes
fd11:1111:1111::11112001:40b0:7500:280::5458:517ayes
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::1592001:610:510:115:192:42:115:98yes
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::1592001:770:18:7:225:90ff:fe0c:acb4yes
2001:4978:1fb:6400::d22001:770:18:7:225:90ff:fe0c:acb4yes
2001:49aa:111:aa00::112001:770:18:7:225:90ff:fe0c:acb4yes
fd11:1111:1111::11112001:770:18:7:225:90ff:fe0c:acb4yes
2001:48d0:101:501::1592001:df0:4:800:21c:c0ff:feb2:ad5fyes
2001:4978:1fb:6400::d22001:df0:4:800:21c:c0ff:feb2:ad5fyes
2001:49aa:111:aa00::112001:df0:4:800:21c:c0ff:feb2:ad5fyes
fd11:1111:1111::11112001:df0:4:800:21c:c0ff:feb2:ad5fyes
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2804:3714:40xx::/40/120266388yes
2804:3714:40xx::/40/112266388yes
2804:3714:40xx::/40/104266388yes
2804:3714:40xx::/40/96266388yes
2804:3714:40xx::/40/88266388yes
2804:3714:40xx::/40/80266388yes
2804:3714:40xx::/40/72266388yes
2804:3714:40xx::/40/64266388yes
2804:3714:40xx::/40/56266388yes
2804:3714:40xx::/40/48266388yes
2804:3714:40xx::/40/40266388yes
2804:3714:c0xx::/40/32266388yes
2804:3794:40xx::/40/24UNROUTEDyes
2804:b714:40xx::/40/16UNROUTEDyes

Meaning of status in Received column:

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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