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Session Report

Summary:
Test run at: 2023-03-13 19:09:10 GMT
Client Prefix (v4): 138.99.198.x/24
Client AS (v4): 264216
IPv4 Probes: 57
Client Prefix (v6): 2804:87bc:f0xx::/40
Client AS (v6): 61609
IPv6 Probes: 52
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 (138.99.198.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
138.99.198.x/24/31264216natblock
138.99.198.x/24/30264216natblock
138.99.198.x/24/29264216natblock
138.99.198.x/24/28264216natblock
138.99.198.x/24/27264216natblock
138.99.198.x/24/26264216natblock
138.99.198.x/24/25264216natblock
138.99.198.x/24/24264216natblock
138.99.199.x/24/23264216natblock
138.99.196.x/24/22264216natblock
138.99.194.x/24/2152760natblock
138.99.206.x/24/2052686natblock
138.99.214.x/24/1927660natblock
138.99.230.x/24/18270744natblock
138.99.134.x/24/17264215natblock
138.99.70.x/24/16264160natblock
138.98.198.x/24/15UNROUTEDnatblock
138.97.198.x/24/14264195natblock
138.103.198.x/24/137046natblock
138.107.198.x/24/122497natblock
138.115.198.x/24/11270natblock
138.67.198.x/24/1036704natblock
138.35.198.x/24/9UNROUTEDnatblock
138.227.198.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::1592001:40b0:7500:280::5458:517ayes
2001:4978:1fb:6400::d22001:40b0:7500:280::5458:517ayes
2001:49aa:111:aa00::112001:40b0:7500:280::5458:517ayes
fd11:1111:1111::11112001:40b0:7500:280::5458:517ayes
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
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2804:87bc:f0xx::/40/12061609yes
2804:87bc:f0xx::/40/11261609yes
2804:87bc:f0xx::/40/10461609yes
2804:87bc:f0xx::/40/9661609yes
2804:87bc:f0xx::/40/8861609yes
2804:87bc:f0xx::/40/8061609yes
2804:87bc:f0xx::/40/7261609yes
2804:87bc:f0xx::/40/6461609yes
2804:87bc:f0xx::/40/5661609yes
2804:87bc:f0xx::/40/4861609yes
2804:87bc:f0xx::/40/4061609yes
2804:87bc:70xx::/40/3261609yes
2804:873c:f0xx::/40/24272697yes
2804:7bc:f0xx::/40/1652861yes

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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