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Session Report

Summary:
Test run at: 2017-04-10 10:17:52 GMT
Client Prefix (v4): 85.221.100.x/24
Client AS (v4): 2116 (ASN-CATCHCOM)
IPv4 Probes: 105
Client Prefix (v6): 2001:8c0:32xx::/40
Client AS (v6): 2116 (ASN-CATCHCOM)
IPv6 Probes: 86
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 (85.221.100.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
85.221.100.x/24/312116no
85.221.100.x/24/302116no
85.221.100.x/24/292116no
85.221.100.x/24/282116no
85.221.100.x/24/272116no
85.221.100.x/24/262116no
85.221.100.x/24/252116no
85.221.100.x/24/242116no
85.221.101.x/24/232116no
85.221.102.x/24/222116no
85.221.96.x/24/212116no
85.221.108.x/24/202116no
85.221.116.x/24/192116no
85.221.68.x/24/182116no
85.221.36.x/24/172116no
85.221.228.x/24/1613110no
85.220.100.x/24/156677no
85.223.100.x/24/1420507no
85.217.100.x/24/1320931no
85.213.100.x/24/1212312no
85.205.100.x/24/1134419no
85.253.100.x/24/1013272no
85.157.100.x/24/915527no
85.93.100.x/24/834315no

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 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2001:8c0:32xx::/40/1202116no
2001:8c0:32xx::/40/1122116no
2001:8c0:32xx::/40/1042116no
2001:8c0:32xx::/40/962116no
2001:8c0:32xx::/40/882116no
2001:8c0:32xx::/40/802116no
2001:8c0:32xx::/40/722116no
2001:8c0:32xx::/40/642116no
2001:8c0:32xx::/40/562116no
2001:8c0:32xx::/40/482116no
2001:8c0:32xx::/40/402116no
2001:8c0:b2xx::/40/322116no
2001:840:32xx::/40/245381no
2001:88c0:32xx::/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:
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