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Session Report

Summary:
Test run at: 2018-04-12 11:49:44 GMT
Client Prefix (v4): 193.0.21.x/24
Client AS (v4): 3333 (RIPE-NCC-AS)
IPv4 Probes: 102
Client Prefix (v6): 2001:67c:2xx::/40
Client AS (v6): 3333 (RIPE-NCC-AS)
IPv6 Probes: 65
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 (193.0.21.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
193.0.21.x/24/313333no
193.0.21.x/24/303333no
193.0.21.x/24/293333no
193.0.21.x/24/283333no
193.0.21.x/24/273333no
193.0.21.x/24/263333no
193.0.21.x/24/253333no
193.0.21.x/24/243333no
193.0.20.x/24/233333no
193.0.23.x/24/223333no
193.0.17.x/24/21UNROUTEDno
193.0.29.x/24/202121no
193.0.5.x/24/193333no
193.0.53.x/24/18UNROUTEDno
193.0.85.x/24/178890no
193.0.149.x/24/1648711no
193.1.21.x/24/151213no
193.2.21.x/24/142107no
193.4.21.x/24/1312969no
193.8.21.x/24/1221222no
193.16.21.x/24/11UNROUTEDno
193.32.21.x/24/1034142no
193.64.21.x/24/9790no
193.128.21.x/24/8702no

Meaning of status in Received column:

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

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
2001:67c:2xx::/40/1203333no
2001:67c:2xx::/40/1123333no
2001:67c:2xx::/40/1043333no
2001:67c:2xx::/40/963333no
2001:67c:2xx::/40/883333no
2001:67c:2xx::/40/803333no
2001:67c:2xx::/40/723333no
2001:67c:2xx::/40/643333no
2001:67c:2xx::/40/563333no
2001:67c:2xx::/40/483333no
2001:67c:2xx::/40/40UNROUTEDno
2001:67c:82xx::/40/32UNROUTEDno
2001:6fc:2xx::/40/24UNROUTEDno
2001:867c:2xx::/40/161221no

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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