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Session Report

Summary:
Test run at: 2020-11-10 11:25:55 GMT
Client Prefix (v4): 46.242.10.x/24
Client AS (v4): 42610 (NCNET-AS)
IPv4 Probes: 75
Client Prefix (v6): 2a02:2168:a4xx::/40
Client AS (v6): 42610 (NCNET-AS)
IPv6 Probes: 68
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenreceived
Routable rewrittenreceived
Largest spoofable neighbor prefix length none/16
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 (46.242.10.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
46.242.10.x/24/3142610rewritten
46.242.10.x/24/3042610rewritten
46.242.10.x/24/2942610rewritten
46.242.10.x/24/2842610rewritten
46.242.10.x/24/2742610rewritten
46.242.10.x/24/2642610rewritten
46.242.10.x/24/2542610rewritten
46.242.10.x/24/2442610rewritten
46.242.11.x/24/2342610rewritten
46.242.8.x/24/2242610rewritten
46.242.14.x/24/2142610rewritten
46.242.2.x/24/2042610rewritten
46.242.26.x/24/1942610rewritten
46.242.42.x/24/1842610rewritten
46.242.74.x/24/1742610rewritten
46.242.138.x/24/1612824rewritten
46.243.10.x/24/1549759rewritten
46.240.10.x/24/1435819rewritten
46.246.10.x/24/1342708rewritten
46.250.10.x/24/1234661rewritten
46.226.10.x/24/1139783rewritten
46.210.10.x/24/101680rewritten
46.178.10.x/24/95432rewritten
46.114.10.x/24/86805rewritten

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 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::242yes
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
2001:48d0:101:501::1592001:48d0:101:501::247yes
2001:4978:1fb:6400::d22001:48d0:101:501::247yes
2001:49aa:111:aa00::112001:48d0:101:501::247yes
fd11:1111:1111::11112001:48d0:101:501::247yes
2001:48d0:101:501::1592001:610:510:115:192:42:115:98yes
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:45a6yes
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:acb4yes
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:ad5fyes
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
2a02:2168:a4xx::/40/12042610yes
2a02:2168:a4xx::/40/11242610yes
2a02:2168:a4xx::/40/10442610yes
2a02:2168:a4xx::/40/9642610yes
2a02:2168:a4xx::/40/8842610yes
2a02:2168:a4xx::/40/8042610yes
2a02:2168:a4xx::/40/7242610yes
2a02:2168:a4xx::/40/6442610yes
2a02:2168:a4xx::/40/5642610yes
2a02:2168:a4xx::/40/4842610yes
2a02:2168:a4xx::/40/4042610yes
2a02:2168:24xx::/40/3242610yes
2a02:21e8:a4xx::/40/24197036yes
2a02:a168:a4xx::/40/16UNROUTEDyes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
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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