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Session Report

Summary:
Test run at: 2021-12-06 11:09:51 GMT
Client Prefix (v4): 102.222.188.x/24
Client AS (v4): 328677 (KorCom-AS)
IPv4 Probes: 66
Client Prefix (v6): 2600:70ff:e8xx::/40
Client AS (v6): 6939 (HURRICANE)
IPv6 Probes: 56
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/48

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


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
102.222.188.x/24/31328677natblock
102.222.188.x/24/30328677natblock
102.222.188.x/24/29328677natblock
102.222.188.x/24/28328677natblock
102.222.188.x/24/27328677natblock
102.222.188.x/24/26328677natblock
102.222.188.x/24/25328677natblock
102.222.188.x/24/24328677natblock
102.222.189.x/24/23328677natblock
102.222.190.x/24/22328677natblock
102.222.184.x/24/21328698natblock
102.222.180.x/24/20328453natblock
102.222.172.x/24/19UNROUTEDnatblock
102.222.156.x/24/18UNROUTEDnatblock
102.222.252.x/24/1737284natblock
102.222.60.x/24/16328771natblock
102.223.188.x/24/15UNROUTEDnatblock
102.220.188.x/24/14328160natblock
102.218.188.x/24/1336947natblock
102.214.188.x/24/12UNROUTEDnatblock
102.206.188.x/24/11UNROUTEDnatblock
102.254.188.x/24/105713natblock
102.158.188.x/24/937705natblock
102.94.188.x/24/8UNROUTEDnatblock

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::1592001:770:1c: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
2600:70ff:e8xx::/40/1206939yes
2600:70ff:e8xx::/40/1126939yes
2600:70ff:e8xx::/40/1046939yes
2600:70ff:e8xx::/40/966939yes
2600:70ff:e8xx::/40/886939yes
2600:70ff:e8xx::/40/806939yes
2600:70ff:e8xx::/40/726939yes
2600:70ff:e8xx::/40/646939yes
2600:70ff:e8xx::/40/566939yes
2600:70ff:e8xx::/40/486939yes
2600:70ff:e8xx::/40/406939no
2600:70ff:68xx::/40/326939no
2600:707f:e8xx::/40/246939no
2600:f0ff:e8xx::/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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