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Session Report

Summary:
Test run at: 2020-06-18 18:04:51 GMT
Client Prefix (v4): 203.78.144.x/24
Client AS (v4): 134749 (SPEEDTECHONLINE-AS-AP)
IPv4 Probes: 75
Client Prefix (v6): 2407:fe80:82xx::/40
Client AS (v6): 134749 (SPEEDTECHONLINE-AS-AP)
IPv6 Probes: 68
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenreceived
Routable receivedreceived
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 (203.78.144.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
203.78.144.x/24/31134749rewritten
203.78.144.x/24/30134749rewritten
203.78.144.x/24/29134749rewritten
203.78.144.x/24/28134749rewritten
203.78.144.x/24/27134749rewritten
203.78.144.x/24/26134749rewritten
203.78.144.x/24/25134749rewritten
203.78.144.x/24/24134749rewritten
203.78.145.x/24/23134749rewritten
203.78.146.x/24/22134749rewritten
203.78.148.x/24/219234rewritten
203.78.152.x/24/2024439rewritten
203.78.128.x/24/1936351rewritten
203.78.176.x/24/189505rewritten
203.78.208.x/24/17703rewritten
203.78.16.x/24/162756rewritten
203.79.144.x/24/157482rewritten
203.76.144.x/24/1417469rewritten
203.74.144.x/24/133462rewritten
203.70.144.x/24/124780rewritten
203.94.144.x/24/1110223rewritten
203.110.144.x/24/1017477rewritten
203.14.144.x/24/9UNROUTEDrewritten
203.206.144.x/24/84802rewritten

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 able to spoof routable, non-adjacent source addresses through the first 10 IP hop(s).
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:acb4yes
2001:49aa:111:aa00::112001:770:18:7:225:90ff:fe0c:acb4yes
fd11:1111:1111::11112001:770:18:7:225:90ff: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
2407:fe80:82xx::/40/120134749yes
2407:fe80:82xx::/40/112134749yes
2407:fe80:82xx::/40/104134749yes
2407:fe80:82xx::/40/96134749yes
2407:fe80:82xx::/40/88134749yes
2407:fe80:82xx::/40/80134749yes
2407:fe80:82xx::/40/72134749yes
2407:fe80:82xx::/40/64134749yes
2407:fe80:82xx::/40/56134749yes
2407:fe80:82xx::/40/48134749yes
2407:fe80:82xx::/40/40134749yes
2407:fe80:2xx::/40/32134749yes
2407:fe00:82xx::/40/24UNROUTEDyes
2407:7e80:82xx::/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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