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Session Report

Summary:
Test run at: 2017-04-18 06:42:50 GMT
Client Prefix (v4): 77.72.226.x/24
Client AS (v4): 8674 (NETNOD-IX)
IPv4 Probes: 90
Client Prefix (v6): 2a01:3f0:xx::/40
Client AS (v6): 8674 (NETNOD-IX)
IPv6 Probes: 77
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable blockedblocked
Largest spoofable neighbor prefix length /24none
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 (77.72.226.x/24) can spoof 255 neighboring addresses (within your /24 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
77.72.226.x/24/318674yes
77.72.226.x/24/308674yes
77.72.226.x/24/298674yes
77.72.226.x/24/288674yes
77.72.226.x/24/278674yes
77.72.226.x/24/268674yes
77.72.226.x/24/258674yes
77.72.226.x/24/248674yes
77.72.227.x/24/238674no
77.72.224.x/24/228674no
77.72.230.x/24/218674no
77.72.234.x/24/20UNROUTEDno
77.72.242.x/24/1943053no
77.72.194.x/24/1812835no
77.72.162.x/24/1733890no
77.72.98.x/24/1642303no
77.73.226.x/24/1541960no
77.74.226.x/24/1443179no
77.76.226.x/24/138823no
77.64.226.x/24/1216202no
77.88.226.x/24/11UNROUTEDno
77.104.226.x/24/1039906no
77.8.226.x/24/96805no
77.200.226.x/24/815557no

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 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 probes:
Spoofed source addressDestinationReceived
2001:4978:1fb:6400::d22001:388:1:5001:21c:c0ff:fea2:4a3ano
2001:49aa:111:aa00::112001:388:1:5001:21c:c0ff:fea2:4a3ano
fd11:1111:1111::11112001:388:1:5001:21c:c0ff:fea2:4a3ano
2001:4978:1fb:6400::d22001:410:102:1::78no
2001:49aa:111:aa00::112001:410:102:1::78no
fd11:1111:1111::11112001:410:102:1::78no
2001:4978:1fb:6400::d22001:410:90ff::5no
2001:49aa:111:aa00::112001:410:90ff::5no
fd11:1111:1111::11112001:410:90ff::5no
2001:4978:1fb:6400::d22001:48d0:101:501::242no
2001:49aa:111:aa00::112001:48d0:101:501::242no
fd11:1111:1111::11112001:48d0:101:501::242no
2001:4978:1fb:6400::d22001:48d0:101:501::247no
2001:49aa:111:aa00::112001:48d0:101:501::247no
fd11:1111:1111::11112001:48d0:101:501::247no
2001:4978:1fb:6400::d22001:610:510:115:192:42:115:98no
2001:49aa:111:aa00::112001:610:510:115:192:42:115:98no
fd11:1111:1111::11112001:610:510:115:192:42:115:98no
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:45a6no
2001:4978:1fb:6400::d22001:708:40:2001:21c:c0ff:fea2:4c5cno
2001:49aa:111:aa00::112001:708:40:2001:21c:c0ff:fea2:4c5cno
fd11:1111:1111::11112001:708:40:2001:21c:c0ff:fea2:4c5cno
2001:4978:1fb:6400::d22001:770:18:7:225:90ff:fe0c:acb4no
2001:49aa:111:aa00::112001:770:18:7:225:90ff:fe0c:acb4no
fd11:1111:1111::11112001:770:18:7:225:90ff:fe0c:acb4no
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a01:3f0:xx::/40/1208674sendto
2a01:3f0:xx::/40/1128674sendto
2a01:3f0:xx::/40/1048674sendto
2a01:3f0:xx::/40/968674sendto
2a01:3f0:xx::/40/888674sendto
2a01:3f0:xx::/40/808674sendto
2a01:3f0:xx::/40/728674sendto
2a01:3f0:xx::/40/648674sendto
2a01:3f0:xx::/40/568674sendto
2a01:3f0:xx::/40/488674sendto
2a01:3f0:xx::/40/408674sendto
2a01:3f0:80xx::/40/328674sendto
2a01:370:xx::/40/24UNROUTEDsendto
2a01:83f0: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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