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Session Report

Summary:
Test run at: 2018-10-10 16:26:32 GMT
Client Prefix (v4): 46.227.202.x/24
Client AS (v4): 41495 (FAELIX)
IPv4 Probes: 124
Client Prefix (v6): 2a01:9e00:40xx::/40
Client AS (v6): 41495 (FAELIX)
IPv6 Probes: 82
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable blockedblocked
Largest spoofable neighbor prefix length /21/32
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 (46.227.202.x/24) can spoof 2047 neighboring addresses (within your /21 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
46.227.202.x/24/3141495yes
46.227.202.x/24/3041495yes
46.227.202.x/24/2941495yes
46.227.202.x/24/2841495yes
46.227.202.x/24/2741495yes
46.227.202.x/24/2641495yes
46.227.202.x/24/2541495yes
46.227.202.x/24/2441495yes
46.227.203.x/24/2341495yes
46.227.200.x/24/2241495yes
46.227.206.x/24/2141495yes
46.227.194.x/24/202116natblock
46.227.218.x/24/1921413natblock
46.227.234.x/24/1812871natblock
46.227.138.x/24/1724945natblock
46.227.74.x/24/1613189natblock
46.226.202.x/24/1512835natblock
46.225.202.x/24/1456402natblock
46.231.202.x/24/1321069natblock
46.235.202.x/24/1233828natblock
46.243.202.x/24/1142525natblock
46.195.202.x/24/102119natblock
46.163.202.x/24/951935natblock
46.99.202.x/24/821246natblock

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
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 able to spoof routable, non-adjacent source addresses through the first 3 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:ec4:7aff:fea8:71a82001:48d0:101:501::242no
2001:4978:1fb:6400::d22001:48d0:101:501::242no
2001:49aa:111:aa00::112001:48d0:101:501::242no
fd11:1111:1111::11112001:48d0:101:501::242no
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a01:9e00:40xx::/40/12041495yes
2a01:9e00:40xx::/40/11241495yes
2a01:9e00:40xx::/40/10441495yes
2a01:9e00:40xx::/40/9641495yes
2a01:9e00:40xx::/40/8841495yes
2a01:9e00:40xx::/40/8041495yes
2a01:9e00:40xx::/40/7241495yes
2a01:9e00:40xx::/40/6441495yes
2a01:9e00:40xx::/40/5641495yes
2a01:9e00:40xx::/40/4841495yes
2a01:9e00:40xx::/40/4041495yes
2a01:9e00:c0xx::/40/3241495yes
2a01:9e80:40xx::/40/24UNROUTEDno
2a01:1e00:40xx::/40/16UNROUTEDno

Meaning of status in Received column:

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