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Session Report

Summary:
Test run at: 2020-09-12 16:51:02 GMT
Client Prefix (v4): 141.98.136.x/24
Client AS (v4): 209844 (NAT64-XYZ)
IPv4 Probes: 75
Client Prefix (v6): 2a09:11c0:xx::/40
Client AS (v6): 209844 (NAT64-XYZ)
IPv6 Probes: 68
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 (141.98.136.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
141.98.136.x/24/31209844yes
141.98.136.x/24/30209844yes
141.98.136.x/24/29209844yes
141.98.136.x/24/28209844yes
141.98.136.x/24/27209844yes
141.98.136.x/24/26209844yes
141.98.136.x/24/25209844no
141.98.136.x/24/24209844yes
141.98.137.x/24/2356381yes
141.98.138.x/24/22207612yes
141.98.140.x/24/2121183yes
141.98.128.x/24/20UNROUTEDno
141.98.152.x/24/1923470yes
141.98.168.x/24/1848430yes
141.98.200.x/24/17206988yes
141.98.8.x/24/16209605yes
141.99.136.x/24/15680yes
141.96.136.x/24/1425367yes
141.102.136.x/24/13UNROUTEDno
141.106.136.x/24/1233503yes
141.114.136.x/24/11557yes
141.66.136.x/24/1013040yes
141.34.136.x/24/91754yes
141.226.136.x/24/850079yes

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
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::1592001:770:18:7:225:90ff: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:ad5fno
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a09:11c0:xx::/40/120209844yes
2a09:11c0:xx::/40/112209844yes
2a09:11c0:xx::/40/104209844yes
2a09:11c0:xx::/40/96209844yes
2a09:11c0:xx::/40/88209844yes
2a09:11c0:xx::/40/80209844yes
2a09:11c0:xx::/40/72209844yes
2a09:11c0:xx::/40/64209844yes
2a09:11c0:xx::/40/56209844yes
2a09:11c0:xx::/40/48209844yes
2a09:11c0:xx::/40/40209844yes
2a09:11c0:80xx::/40/32UNROUTEDyes
2a09:1140:xx::/40/24UNROUTEDyes
2a09:91c0:xx::/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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