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Session Report

Summary:
Test run at: 2020-07-22 23:38:11 GMT
Client Prefix (v4): 138.118.15.x/24
Client AS (v4): 262591
IPv4 Probes: 75
Client Prefix (v6): 2804:f04:90xx::/40
Client AS (v6): 262591
IPv6 Probes: 68
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 nonenone
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 (138.118.15.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
138.118.15.x/24/31262591natblock
138.118.15.x/24/30262591natblock
138.118.15.x/24/29262591natblock
138.118.15.x/24/28262591natblock
138.118.15.x/24/27262591natblock
138.118.15.x/24/26262591natblock
138.118.15.x/24/25262591natblock
138.118.15.x/24/24262591natblock
138.118.14.x/24/23262591natblock
138.118.13.x/24/22262591natblock
138.118.11.x/24/2114178natblock
138.118.7.x/24/20264241natblock
138.118.31.x/24/19262980natblock
138.118.47.x/24/18UNROUTEDnatblock
138.118.79.x/24/17262394natblock
138.118.143.x/24/1652925natblock
138.119.15.x/24/15611natblock
138.116.15.x/24/1433004natblock
138.114.15.x/24/13UNROUTEDnatblock
138.126.15.x/24/12UNROUTEDnatblock
138.102.15.x/24/112200natblock
138.86.15.x/24/1015295natblock
138.54.15.x/24/9UNROUTEDnatblock
138.246.15.x/24/812816natblock

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::1592001:770:18:7:225:90ff:fe0c:acb4no
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:ad5fno
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
2804:f04:90xx::/40/120262591no
2804:f04:90xx::/40/112262591no
2804:f04:90xx::/40/104262591no
2804:f04:90xx::/40/96262591no
2804:f04:90xx::/40/88262591no
2804:f04:90xx::/40/80262591no
2804:f04:90xx::/40/72262591no
2804:f04:90xx::/40/64262591no
2804:f04:90xx::/40/56262591no
2804:f04:90xx::/40/48262591no
2804:f04:90xx::/40/40262591no
2804:f04:10xx::/40/32262591no
2804:f84:90xx::/40/24263589no
2804:8f04:90xx::/40/16UNROUTEDno

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
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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