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Session Report

Summary:
Test run at: 2017-08-25 14:03:17 GMT
Client Prefix (v4): 178.198.42.x/24
Client AS (v4): 3303 (SWISSCOM)
IPv4 Probes: 118
Client Prefix (v6): 2a02:120b:2cxx::/40
Client AS (v6): 3303 (SWISSCOM)
IPv6 Probes: 79
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 nonenone
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 (178.198.42.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
178.198.42.x/24/313303natblock
178.198.42.x/24/303303natblock
178.198.42.x/24/293303natblock
178.198.42.x/24/283303natblock
178.198.42.x/24/273303natblock
178.198.42.x/24/263303natblock
178.198.42.x/24/253303natblock
178.198.42.x/24/243303natblock
178.198.43.x/24/233303natblock
178.198.40.x/24/223303natblock
178.198.46.x/24/213303natblock
178.198.34.x/24/203303natblock
178.198.58.x/24/193303natblock
178.198.10.x/24/183303natblock
178.198.106.x/24/173303natblock
178.198.170.x/24/163303natblock
178.199.42.x/24/153303natblock
178.196.42.x/24/143303natblock
178.194.42.x/24/133303natblock
178.206.42.x/24/1228840natblock
178.214.42.x/24/1151343natblock
178.230.42.x/24/1031615natblock
178.134.42.x/24/935805natblock
178.70.42.x/24/88997natblock

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 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::d22001:410:90ff::5no
2001:49aa:111:aa00::112001:410:90ff::5no
fd11:1111:1111::11112001:410:90ff::5no
2001:4978:1fb:6400::d22001:48d0:101:501::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
2a02:120b:2cxx::/40/1203303no
2a02:120b:2cxx::/40/1123303no
2a02:120b:2cxx::/40/1043303no
2a02:120b:2cxx::/40/963303no
2a02:120b:2cxx::/40/883303no
2a02:120b:2cxx::/40/803303no
2a02:120b:2cxx::/40/723303no
2a02:120b:2cxx::/40/643303no
2a02:120b:2cxx::/40/563303no
2a02:120b:2cxx::/40/483303no
2a02:120b:2cxx::/40/403303no
2a02:120b:acxx::/40/323303no
2a02:128b:2cxx::/40/24UNROUTEDno
2a02:920b:2cxx::/40/16UNROUTEDno

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
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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