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Session Report

Summary:
Test run at: 2017-09-10 09:16:05 GMT
Client Prefix (v4): 193.96.224.x/24
Client AS (v4): 49009 (FFHH)
IPv4 Probes: 131
Client Prefix (v6): 2a03:2267:xx::/40
Client AS (v6): 49009 (FFHH)
IPv6 Probes: 85
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable receivedreceived
Largest spoofable neighbor prefix length /8/112
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 (193.96.224.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
193.96.224.x/24/3149009natblock
193.96.224.x/24/3049009natblock
193.96.224.x/24/2949009natblock
193.96.224.x/24/2849009yes
193.96.224.x/24/2749009yes
193.96.224.x/24/2649009yes
193.96.224.x/24/2549009yes
193.96.224.x/24/2449009yes
193.96.225.x/24/23702yes
193.96.226.x/24/228767yes
193.96.228.x/24/21702yes
193.96.232.x/24/203320yes
193.96.240.x/24/193320yes
193.96.192.x/24/18702yes
193.96.160.x/24/17702yes
193.96.96.x/24/1651964yes
193.97.224.x/24/15702yes
193.98.224.x/24/143320yes
193.100.224.x/24/13702yes
193.104.224.x/24/1251583yes
193.112.224.x/24/11UNROUTEDyes
193.64.224.x/24/10790yes
193.32.224.x/24/9UNROUTEDyes
193.224.224.x/24/81955yes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
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 10 IP hop(s).
IPv6 probes:
Spoofed source addressDestinationReceived
2001:4978:1fb:6400::d22001:48d0:101:501::242yes
2001:49aa:111:aa00::112001:48d0:101:501::242yes
fd11:1111:1111::11112001:48d0:101:501::242no
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a03:2267:xx::/40/12049009yes
2a03:2267:xx::/40/11249009yes
2a03:2267:xx::/40/10449009no
2a03:2267:xx::/40/9649009no
2a03:2267:xx::/40/8849009no
2a03:2267:xx::/40/8049009no
2a03:2267:xx::/40/7249009no
2a03:2267:xx::/40/6449009no
2a03:2267:xx::/40/5649009no
2a03:2267:xx::/40/4849009no
2a03:2267:xx::/40/4049009no
2a03:2267:80xx::/40/3249009no
2a03:22e7:xx::/40/24UNROUTEDno
2a03:a267:xx::/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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