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Session Report

Summary:
Test run at: 2021-07-24 22:26:46 GMT
Client Prefix (v4): 181.174.107.x/24
Client AS (v4): 52362
IPv4 Probes: 66
Client Prefix (v6): 2803:d100:e1xx::/40
Client AS (v6): 52362
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedreceived
Routable blockedreceived
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.
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 (181.174.107.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
181.174.107.x/24/3152362natblock
181.174.107.x/24/3052362natblock
181.174.107.x/24/2952362natblock
181.174.107.x/24/2852362natblock
181.174.107.x/24/2752362natblock
181.174.107.x/24/2652362natblock
181.174.107.x/24/2552362natblock
181.174.107.x/24/2452362natblock
181.174.106.x/24/2352362natblock
181.174.105.x/24/2252362natblock
181.174.111.x/24/2123243natblock
181.174.99.x/24/2023243natblock
181.174.123.x/24/1923243natblock
181.174.75.x/24/1823243natblock
181.174.43.x/24/1722368natblock
181.174.235.x/24/16UNROUTEDnatblock
181.175.107.x/24/1514522natblock
181.172.107.x/24/1427680natblock
181.170.107.x/24/137303natblock
181.166.107.x/24/127303natblock
181.190.107.x/24/1114259natblock
181.142.107.x/24/1013489natblock
181.238.107.x/24/919037natblock
181.46.107.x/24/827747natblock

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::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::1592001:770:1c:7:225:90ff:fe0c:acb4yes
2001:4978:1fb:6400::d22001:770:1c:7:225:90ff:fe0c:acb4yes
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4yes
fd11:1111:1111::11112001:770:1c:7:225:90ff:fe0c:acb4yes
2001:48d0:101:501::1592001:df0:4:800:21c:c0ff:feb2:ad5fyes
2001:4978:1fb:6400::d22001:df0:4:800:21c:c0ff:feb2:ad5fyes
2001:49aa:111:aa00::112001:df0:4:800:21c:c0ff:feb2:ad5fyes
fd11:1111:1111::11112001:df0:4:800:21c:c0ff:feb2:ad5fyes
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2803:d100:e1xx::/40/12052362yes
2803:d100:e1xx::/40/11252362yes
2803:d100:e1xx::/40/10452362yes
2803:d100:e1xx::/40/9652362yes
2803:d100:e1xx::/40/8852362yes
2803:d100:e1xx::/40/8052362yes
2803:d100:e1xx::/40/7252362yes
2803:d100:e1xx::/40/6452362yes
2803:d100:e1xx::/40/5652362yes
2803:d100:e1xx::/40/4852362yes
2803:d100:e1xx::/40/4052362yes
2803:d100:61xx::/40/3252362yes
2803:d180:e1xx::/40/24UNROUTEDyes
2803:5100:e1xx::/40/16UNROUTEDyes

Meaning of status in Received column:

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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