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Session Report

Summary:
Test run at: 2022-06-28 21:36:42 GMT
Client Prefix (v4): 216.147.126.x/24
Client AS (v4): 14593 (SPACEX-STARLINK)
IPv4 Probes: 60
Client Prefix (v6): 2600:6ce7:xx::/40
Client AS (v6): 16787 (CHARTER-16787-DC)
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA unknownunknown
Routable unknownunknown
Largest spoofable neighbor prefix length nonenone
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 (216.147.126.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
216.147.126.x/24/3114593sendto
216.147.126.x/24/3014593natblock
216.147.126.x/24/2914593sendto
216.147.126.x/24/2814593sendto
216.147.126.x/24/2714593sendto
216.147.126.x/24/2614593sendto
216.147.126.x/24/2514593sendto
216.147.126.x/24/2414593sendto
216.147.127.x/24/2314593sendto
216.147.124.x/24/2214593sendto
216.147.122.x/24/2114593sendto
216.147.118.x/24/20UNROUTEDsendto
216.147.110.x/24/1935699sendto
216.147.94.x/24/18399673sendto
216.147.62.x/24/1717151sendto
216.147.254.x/24/1640113sendto
216.146.126.x/24/158057sendto
216.145.126.x/24/1413649sendto
216.151.126.x/24/1317054sendto
216.155.126.x/24/127453sendto
216.131.126.x/24/1122781sendto
216.179.126.x/24/108120sendto
216.211.126.x/24/932277sendto
216.19.126.x/24/814325sendto

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.
sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

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 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2600:6ce7:xx::/40/12016787no
2600:6ce7:xx::/40/11216787no
2600:6ce7:xx::/40/10416787no
2600:6ce7:xx::/40/9616787no
2600:6ce7:xx::/40/8816787no
2600:6ce7:xx::/40/8016787no
2600:6ce7:xx::/40/7216787no
2600:6ce7:xx::/40/6416787no
2600:6ce7:xx::/40/5616787no
2600:6ce7:xx::/40/4816787no
2600:6ce7:xx::/40/4016787no
2600:6ce7:80xx::/40/3216787no
2600:6c67:xx::/40/2433588no
2600:ece7:xx::/40/16UNROUTEDno

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
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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