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Session Report

Summary:
Test run at: 2020-07-13 09:52:40 GMT
Client Prefix (v4): 91.65.111.x/24
Client AS (v4): 31334 (KABELDEUTSCHLAND-AS)
IPv4 Probes: 75
Client Prefix (v6): 2a02:8109:b5xx::/40
Client AS (v6): 31334 (KABELDEUTSCHLAND-AS)
IPv6 Probes: 68
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 none/64

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.
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 (91.65.111.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
91.65.111.x/24/3131334natblock
91.65.111.x/24/3031334natblock
91.65.111.x/24/2931334natblock
91.65.111.x/24/2831334natblock
91.65.111.x/24/2731334natblock
91.65.111.x/24/2631334natblock
91.65.111.x/24/2531334natblock
91.65.111.x/24/2431334natblock
91.65.110.x/24/2331334natblock
91.65.109.x/24/2231334natblock
91.65.107.x/24/2131334natblock
91.65.103.x/24/2031334natblock
91.65.127.x/24/1931334natblock
91.65.79.x/24/1831334natblock
91.65.47.x/24/1731334natblock
91.65.239.x/24/1631334natblock
91.64.111.x/24/1531334natblock
91.67.111.x/24/1431334natblock
91.69.111.x/24/1315557natblock
91.73.111.x/24/1215802natblock
91.81.111.x/24/1130722natblock
91.97.111.x/24/109145natblock
91.1.111.x/24/93320natblock
91.193.111.x/24/834665natblock

Meaning of status in Received column:

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 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
2001:48d0:101:501::1592001:48d0:101:501::242no
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
2001:48d0:101:501::1592001:48d0:101:501::247no
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
2001:48d0:101:501::1592001:610:510:115:192:42:115:98no
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
2001:48d0:101:501::1592001:630:212:225:225:90ff:fe0c:45a6no
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
2001:48d0:101:501::1592001:770:18:7:225:90ff:fe0c:acb4no
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
2001:48d0:101:501::1592001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:4978:1fb:6400::d22001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:49aa:111:aa00::112001:df0:4:800:21c:c0ff:feb2:ad5fno
fd11:1111:1111::11112001:df0:4:800:21c:c0ff:feb2:ad5fno
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a02:8109:b5xx::/40/12031334yes
2a02:8109:b5xx::/40/11231334yes
2a02:8109:b5xx::/40/10431334yes
2a02:8109:b5xx::/40/9631334yes
2a02:8109:b5xx::/40/8831334yes
2a02:8109:b5xx::/40/8031334yes
2a02:8109:b5xx::/40/7231334yes
2a02:8109:b5xx::/40/6431334yes
2a02:8109:b5xx::/40/5631334no
2a02:8109:b5xx::/40/4831334no
2a02:8109:b5xx::/40/4031334no
2a02:8109:35xx::/40/3231334no
2a02:8189:b5xx::/40/24UNROUTEDno
2a02:109:b5xx::/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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