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Session Report

Summary:
Test run at: 2017-06-23 12:45:42 GMT
Client Prefix (v4): 193.163.102.x/24
Client AS (v4): 39839 (DK-HOSTMASTER)
IPv4 Probes: 132
Client Prefix (v6): 2a01:630:xx::/40
Client AS (v6): 39839 (DK-HOSTMASTER)
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 (193.163.102.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
193.163.102.x/24/3139839sendto
193.163.102.x/24/3039839sendto
193.163.102.x/24/2939839sendto
193.163.102.x/24/2839839sendto
193.163.102.x/24/2739839sendto
193.163.102.x/24/2639839sendto
193.163.102.x/24/2539839sendto
193.163.102.x/24/2439839sendto
193.163.103.x/24/23UNROUTEDsendto
193.163.100.x/24/223292sendto
193.163.98.x/24/21UNROUTEDsendto
193.163.110.x/24/20UNROUTEDsendto
193.163.118.x/24/193292sendto
193.163.70.x/24/18UNROUTEDsendto
193.163.38.x/24/173292sendto
193.163.230.x/24/1644328sendto
193.162.102.x/24/15UNROUTEDsendto
193.161.102.x/24/142119sendto
193.167.102.x/24/131741sendto
193.171.102.x/24/121853sendto
193.179.102.x/24/115588sendto
193.131.102.x/24/103244sendto
193.227.102.x/24/941506sendto
193.35.102.x/24/8197694sendto

Meaning of status in Received column:

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
2a01:630:xx::/40/12039839sendto
2a01:630:xx::/40/11239839sendto
2a01:630:xx::/40/10439839sendto
2a01:630:xx::/40/9639839sendto
2a01:630:xx::/40/8839839sendto
2a01:630:xx::/40/8039839sendto
2a01:630:xx::/40/7239839sendto
2a01:630:xx::/40/6439839sendto
2a01:630:xx::/40/5639839sendto
2a01:630:xx::/40/4839839sendto
2a01:630:xx::/40/4039839sendto
2a01:630:80xx::/40/3239839sendto
2a01:6b0:xx::/40/2415772sendto
2a01:8630:xx::/40/16UNROUTEDsendto

Meaning of status in Received column:

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