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Session Report

Summary:
Test run at: 2022-09-11 15:19:04 GMT
Client Prefix (v4): 46.114.205.x/24
Client AS (v4): 6805 (TDDE-ASN1)
IPv4 Probes: 60
Client Prefix (v6): 2a02:3036:2xx::/40
Client AS (v6): 6805 (TDDE-ASN1)
IPv6 Probes: 52
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenblocked
Routable rewrittenblocked
Largest spoofable neighbor prefix length none/64
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.

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


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
46.114.205.x/24/316805rewritten
46.114.205.x/24/306805rewritten
46.114.205.x/24/296805rewritten
46.114.205.x/24/286805rewritten
46.114.205.x/24/276805rewritten
46.114.205.x/24/266805rewritten
46.114.205.x/24/256805rewritten
46.114.205.x/24/246805rewritten
46.114.204.x/24/236805rewritten
46.114.207.x/24/226805rewritten
46.114.201.x/24/216805rewritten
46.114.197.x/24/206805rewritten
46.114.221.x/24/196805rewritten
46.114.237.x/24/186805rewritten
46.114.141.x/24/176805rewritten
46.114.77.x/24/166805rewritten
46.115.205.x/24/156805rewritten
46.112.205.x/24/1439603rewritten
46.118.205.x/24/1315895rewritten
46.122.205.x/24/1221283rewritten
46.98.205.x/24/1115377rewritten
46.82.205.x/24/103320rewritten
46.50.205.x/24/921127rewritten
46.242.205.x/24/812824rewritten

Meaning of status in Received column:

rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

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
2001:48d0:101:501::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::1592001:770:1c:7:225:90ff:fe0c:acb4no
2001:4978:1fb:6400::d22001:770:1c:7:225:90ff:fe0c:acb4no
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4no
fd11:1111:1111::11112001:770:1c:7:225:90ff:fe0c:acb4no
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a02:3036:2xx::/40/1206805yes
2a02:3036:2xx::/40/1126805yes
2a02:3036:2xx::/40/1046805yes
2a02:3036:2xx::/40/966805yes
2a02:3036:2xx::/40/886805yes
2a02:3036:2xx::/40/806805yes
2a02:3036:2xx::/40/726805yes
2a02:3036:2xx::/40/646805yes
2a02:3036:2xx::/40/566805no
2a02:3036:2xx::/40/486805no
2a02:3036:2xx::/40/406805no
2a02:3036:82xx::/40/326805no
2a02:30b6:2xx::/40/246805no
2a02:b036:2xx::/40/161267no

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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