Logo

Session Report

Summary:
Test run at: 2017-05-20 15:32:23 GMT
Client Prefix (v4): 196.200.212.x/24
Client AS (v4): 37095
IPv4 Probes: 117
Client Prefix (v6): 2001:43f8:2xx::/40
Client AS (v6): 37095
IPv6 Probes: 77
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA receivedblocked
Routable receivedblocked
Largest spoofable neighbor prefix length /8/48

Meaning of result status in column:

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 (196.200.212.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
196.200.212.x/24/3137095yes
196.200.212.x/24/3037095yes
196.200.212.x/24/2937095yes
196.200.212.x/24/2837095yes
196.200.212.x/24/2737095yes
196.200.212.x/24/2637095yes
196.200.212.x/24/2537095yes
196.200.212.x/24/2437095yes
196.200.213.x/24/2337095yes
196.200.214.x/24/2237095yes
196.200.208.x/24/2137095yes
196.200.220.x/24/2037095yes
196.200.196.x/24/19UNROUTEDyes
196.200.244.x/24/1816206yes
196.200.148.x/24/1730983yes
196.200.84.x/24/1630985yes
196.201.212.x/24/1533771yes
196.202.212.x/24/1412455yes
196.204.212.x/24/1324835yes
196.192.212.x/24/12UNROUTEDyes
196.216.212.x/24/11327820yes
196.232.212.x/24/10UNROUTEDyes
196.136.212.x/24/936935yes
196.72.212.x/24/86713yes

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)

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 15 IP hop(s).
IPv6 probes:
Spoofed source addressDestinationReceived
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2001:43f8:2xx::/40/12037095yes
2001:43f8:2xx::/40/11237095yes
2001:43f8:2xx::/40/10437095yes
2001:43f8:2xx::/40/9637095yes
2001:43f8:2xx::/40/8837095yes
2001:43f8:2xx::/40/8037095yes
2001:43f8:2xx::/40/7237095yes
2001:43f8:2xx::/40/6437095yes
2001:43f8:2xx::/40/5637095yes
2001:43f8:2xx::/40/4837095yes
2001:43f8:2xx::/40/4032279natblock
2001:43f8:82xx::/40/32UNROUTEDnatblock
2001:4378:2xx::/40/24UNROUTEDnatblock
2001:c3f8:2xx::/40/16UNROUTEDnatblock

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.
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.
Last Modified