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Session Report

Summary:
Test run at: 2022-06-11 00:48:54 GMT
Client Prefix (v4): 186.219.138.x/24
Client AS (v4): 53167
IPv4 Probes: 60
Client Prefix (v6): 2804:2a4c:10xx::/40
Client AS (v6): 53167
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedreceived
Routable blockedreceived
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.
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 (186.219.138.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
186.219.138.x/24/3153167natblock
186.219.138.x/24/3053167natblock
186.219.138.x/24/2953167natblock
186.219.138.x/24/2853167natblock
186.219.138.x/24/2753167natblock
186.219.138.x/24/2653167natblock
186.219.138.x/24/2553167natblock
186.219.138.x/24/2453167natblock
186.219.139.x/24/2353167natblock
186.219.136.x/24/2253167natblock
186.219.142.x/24/2153167natblock
186.219.130.x/24/2053167natblock
186.219.154.x/24/19262992natblock
186.219.170.x/24/18262754natblock
186.219.202.x/24/17UNROUTEDnatblock
186.219.10.x/24/16262589natblock
186.218.138.x/24/1528573natblock
186.217.138.x/24/1453166natblock
186.223.138.x/24/1328573natblock
186.211.138.x/24/1214840natblock
186.203.138.x/24/1117379natblock
186.251.138.x/24/1053225natblock
186.155.138.x/24/919429natblock
186.91.138.x/24/88048natblock

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 unable to spoof routable, non-adjacent source addresses through even the first IP hop.
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::242no
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::247no
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
2804:2a4c:10xx::/40/12053167yes
2804:2a4c:10xx::/40/11253167yes
2804:2a4c:10xx::/40/10453167yes
2804:2a4c:10xx::/40/9653167yes
2804:2a4c:10xx::/40/8853167yes
2804:2a4c:10xx::/40/8053167yes
2804:2a4c:10xx::/40/7253167yes
2804:2a4c:10xx::/40/6453167yes
2804:2a4c:10xx::/40/5653167yes
2804:2a4c:10xx::/40/4853167yes
2804:2a4c:10xx::/40/4053167yes
2804:2a4c:90xx::/40/3253167yes
2804:2acc:10xx::/40/24UNROUTEDyes
2804:aa4c:10xx::/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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