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Session Report

Summary:
Test run at: 2021-12-16 21:13:13 GMT
Client Prefix (v4): 124.107.255.x/24
Client AS (v4): 9299 (IPG-AS-AP)
IPv4 Probes: 63
Client Prefix (v6): 2001:4450:1xx::/40
Client AS (v6): 9299 (IPG-AS-AP)
IPv6 Probes: 52
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedreceived
Routable receivedreceived
Largest spoofable neighbor prefix length /8/16
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 (124.107.255.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
124.107.255.x/24/319299yes
124.107.255.x/24/309299yes
124.107.255.x/24/299299yes
124.107.255.x/24/289299yes
124.107.255.x/24/279299yes
124.107.255.x/24/269299yes
124.107.255.x/24/259299yes
124.107.255.x/24/249299yes
124.107.254.x/24/239299yes
124.107.253.x/24/229299yes
124.107.251.x/24/219299yes
124.107.247.x/24/209299yes
124.107.239.x/24/199299yes
124.107.223.x/24/189299yes
124.107.191.x/24/179299yes
124.107.127.x/24/169299yes
124.106.255.x/24/159299yes
124.105.255.x/24/149299yes
124.111.255.x/24/139318yes
124.99.255.x/24/124713yes
124.123.255.x/24/11131269yes
124.75.255.x/24/104812yes
124.43.255.x/24/99329yes
124.235.255.x/24/84134yes

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)

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::1592001:770:1c: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
2001:4450:1xx::/40/1209299yes
2001:4450:1xx::/40/1129299yes
2001:4450:1xx::/40/1049299yes
2001:4450:1xx::/40/969299yes
2001:4450:1xx::/40/889299yes
2001:4450:1xx::/40/809299yes
2001:4450:1xx::/40/729299yes
2001:4450:1xx::/40/649299yes
2001:4450:1xx::/40/569299yes
2001:4450:1xx::/40/489299yes
2001:4450:1xx::/40/409299yes
2001:4450:81xx::/40/329299yes
2001:44d0:1xx::/40/24UNROUTEDyes
2001:c450:1xx::/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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