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Session Report

Summary:
Test run at: 2021-01-27 10:49:01 GMT
Client Prefix (v4): 185.49.142.x/24
Client AS (v4): 8587 (Infracom-AS)
IPv4 Probes: 66
Client Prefix (v6): 2a04:b904:xx::/40
Client AS (v6): 8587 (Infracom-AS)
IPv6 Probes: 56
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 /24/16
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 (185.49.142.x/24) can spoof 255 neighboring addresses (within your /24 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
185.49.142.x/24/318587yes
185.49.142.x/24/308587yes
185.49.142.x/24/298587yes
185.49.142.x/24/288587yes
185.49.142.x/24/278587yes
185.49.142.x/24/268587yes
185.49.142.x/24/258587yes
185.49.142.x/24/248587yes
185.49.143.x/24/2316509no
185.49.140.x/24/228587no
185.49.138.x/24/21202217no
185.49.134.x/24/20202152no
185.49.158.x/24/19200030no
185.49.174.x/24/18201856no
185.49.206.x/24/1748815no
185.49.14.x/24/1629205no
185.48.142.x/24/15205276no
185.51.142.x/24/14202164no
185.53.142.x/24/13204544no
185.57.142.x/24/12UNROUTEDno
185.33.142.x/24/1141709no
185.17.142.x/24/1048757no
185.113.142.x/24/9204094no
185.177.142.x/24/851492no

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 (but that netblock is within the source AS)

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::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::1592001:630:212:225:225:90ff: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: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
2a04:b904:xx::/40/1208587yes
2a04:b904:xx::/40/1128587yes
2a04:b904:xx::/40/1048587yes
2a04:b904:xx::/40/968587yes
2a04:b904:xx::/40/888587yes
2a04:b904:xx::/40/808587yes
2a04:b904:xx::/40/728587yes
2a04:b904:xx::/40/648587yes
2a04:b904:xx::/40/568587yes
2a04:b904:xx::/40/488587yes
2a04:b904:xx::/40/408587yes
2a04:b904:80xx::/40/328587yes
2a04:b984:xx::/40/24UNROUTEDyes
2a04:3904:xx::/40/1660669yes

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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