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Session Report

Summary:
Test run at: 2016-06-29 16:54:04 GMT
Client Prefix (v4): 188.42.248.x/24
Client AS (v4): 57062 (SERVERCLUB-AS)
IPv4 Probes: 94
Client Prefix (v6): 2a01:91c0:xx::/40
Client AS (v6): 57062 (SERVERCLUB-AS)
IPv6 Probes: 69
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedreceived
Routable blockedreceived
Largest spoofable neighbor prefix length /20none
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 (188.42.248.x/24) can spoof 4095 neighboring addresses (within your /20 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
188.42.248.x/24/3157062yes
188.42.248.x/24/3057062yes
188.42.248.x/24/2957062yes
188.42.248.x/24/2857062yes
188.42.248.x/24/2757062yes
188.42.248.x/24/2657062yes
188.42.248.x/24/2557062yes
188.42.248.x/24/2457062yes
188.42.249.x/24/2340824no
188.42.250.x/24/2257062no
188.42.252.x/24/2145470no
188.42.240.x/24/2057062yes
188.42.232.x/24/1935415no
188.42.216.x/24/187979no
188.42.184.x/24/17UNROUTEDno
188.42.120.x/24/16UNROUTEDno
188.43.248.x/24/1520485no
188.40.248.x/24/1424940no
188.46.248.x/24/1312638no
188.34.248.x/24/12UNROUTEDno
188.58.248.x/24/1116135no
188.10.248.x/24/103269no
188.106.248.x/24/93209no
188.170.248.x/24/8UNROUTEDno

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)

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 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::242yes
2001:4978:1fb:6400::d22001:48d0:101:501::247yes
2001:49aa:111:aa00::112001:48d0:101:501::247no
fd11:1111:1111::11112001:48d0:101:501::247no
2001:4978:1fb:6400::d22001:630:212:225:225:90ff:fe0c:45a6no
2001:49aa:111:aa00::112001:630:212:225:225:90ff:fe0c:45a6no
fd11:1111:1111::11112001:630:212:225:225:90ff:fe0c:45a6yes
Summary:
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.
Feedback:
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