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Session Report

Summary:
Test run at: 2020-07-23 07:14:36 GMT
Client Prefix (v4): 185.54.80.x/24
Client AS (v4): 202032 (GOLINE)
IPv4 Probes: 75
Client Prefix (v6): 2a02:4460:xx::/40
Client AS (v6): 202032 (GOLINE)
IPv6 Probes: 68
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 (185.54.80.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
185.54.80.x/24/31202032natblock
185.54.80.x/24/30202032natblock
185.54.80.x/24/29202032natblock
185.54.80.x/24/28202032natblock
185.54.80.x/24/27202032natblock
185.54.80.x/24/26202032natblock
185.54.80.x/24/25202032natblock
185.54.80.x/24/24202032natblock
185.54.81.x/24/23202032natblock
185.54.82.x/24/22202032natblock
185.54.84.x/24/2142831natblock
185.54.88.x/24/2039582natblock
185.54.64.x/24/1960015natblock
185.54.112.x/24/1825151natblock
185.54.16.x/24/17202024natblock
185.54.208.x/24/1628889natblock
185.55.80.x/24/15UNROUTEDnatblock
185.52.80.x/24/1447644natblock
185.50.80.x/24/13202202natblock
185.62.80.x/24/1260016natblock
185.38.80.x/24/11UNROUTEDnatblock
185.22.80.x/24/1040551natblock
185.118.80.x/24/912984natblock
185.182.80.x/24/821159natblock

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 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a02:4460:xx::/40/120202032no
2a02:4460:xx::/40/112202032no
2a02:4460:xx::/40/104202032no
2a02:4460:xx::/40/96202032no
2a02:4460:xx::/40/88202032no
2a02:4460:xx::/40/80202032no
2a02:4460:xx::/40/72202032no
2a02:4460:xx::/40/64202032no
2a02:4460:xx::/40/56202032no
2a02:4460:xx::/40/48202032no
2a02:4460:xx::/40/40202032no
2a02:4460:80xx::/40/32202032no
2a02:44e0:xx::/40/24UNROUTEDno
2a02:c460: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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