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Session Report

Summary:
Test run at: 2021-03-24 18:33:54 GMT
Client Prefix (v4): 194.62.6.x/24
Client AS (v4): 213251 (de-srv-2-mnt)
IPv4 Probes: 66
Client Prefix (v6): 2a0b:bbc0:31xx::/40
Client AS (v6): 213251 (de-srv-2-mnt)
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 (194.62.6.x/24) can spoof 255 neighboring addresses (within your /24 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
194.62.6.x/24/31213251yes
194.62.6.x/24/30213251yes
194.62.6.x/24/29213251yes
194.62.6.x/24/28213251yes
194.62.6.x/24/27213251yes
194.62.6.x/24/26213251yes
194.62.6.x/24/25213251yes
194.62.6.x/24/24213251yes
194.62.7.x/24/232856no
194.62.4.x/24/2242513no
194.62.2.x/24/21UNROUTEDno
194.62.14.x/24/20UNROUTEDno
194.62.22.x/24/19UNROUTEDno
194.62.38.x/24/18UNROUTEDno
194.62.70.x/24/1728846no
194.62.134.x/24/1612695no
194.63.6.x/24/15UNROUTEDno
194.60.6.x/24/14UNROUTEDno
194.58.6.x/24/1329256no
194.54.6.x/24/12UNROUTEDno
194.46.6.x/24/1141678no
194.30.6.x/24/103262no
194.126.6.x/24/99051no
194.190.6.x/24/860034no

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::1592001:770:1c: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
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
2a0b:bbc0:31xx::/40/120213251yes
2a0b:bbc0:31xx::/40/112213251yes
2a0b:bbc0:31xx::/40/104213251yes
2a0b:bbc0:31xx::/40/96213251yes
2a0b:bbc0:31xx::/40/88213251yes
2a0b:bbc0:31xx::/40/80213251yes
2a0b:bbc0:31xx::/40/72213251yes
2a0b:bbc0:31xx::/40/64213251yes
2a0b:bbc0:31xx::/40/56213251yes
2a0b:bbc0:31xx::/40/48213251yes
2a0b:bbc0:31xx::/40/40213251yes
2a0b:bbc0:b1xx::/40/32UNROUTEDyes
2a0b:bb40:31xx::/40/2428725yes
2a0b:3bc0:31xx::/40/16UNROUTEDyes

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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