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Session Report

Summary:
Test run at: 2021-12-01 09:27:45 GMT
Client Prefix (v4): 212.53.183.x/24
Client AS (v4): 8893 (ARTFILES-AS)
IPv4 Probes: 66
Client Prefix (v6): 2a00:1f78:afxx::/40
Client AS (v6): 8893 (ARTFILES-AS)
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable blockedblocked
Largest spoofable neighbor prefix length /24/48

Meaning of result status in column:

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 (212.53.183.x/24) can spoof 255 neighboring addresses (within your /24 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
212.53.183.x/24/318893yes
212.53.183.x/24/308893yes
212.53.183.x/24/298893yes
212.53.183.x/24/288893yes
212.53.183.x/24/278893yes
212.53.183.x/24/268893yes
212.53.183.x/24/258893yes
212.53.183.x/24/248893yes
212.53.182.x/24/238893no
212.53.181.x/24/228893no
212.53.179.x/24/218893no
212.53.191.x/24/208893no
212.53.167.x/24/198893no
212.53.151.x/24/188893no
212.53.247.x/24/1762336no
212.53.55.x/24/1612335no
212.52.183.x/24/1528924no
212.55.183.x/24/1415525no
212.49.183.x/24/1312541no
212.61.183.x/24/128426no
212.37.183.x/24/1135205no
212.21.183.x/24/109022no
212.117.183.x/24/95577no
212.181.183.x/24/83301no

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::242no
2001:4978:1fb:6400::d22001:48d0:101:501::242no
2001:49aa:111:aa00::112001:48d0:101:501::242no
fd11:1111:1111::11112001:48d0:101:501::242no
2001:48d0:101:501::1592001:48d0:101:501::247no
2001:4978:1fb:6400::d22001:48d0:101:501::247no
2001:49aa:111:aa00::112001:48d0:101:501::247no
fd11:1111:1111::11112001:48d0:101:501::247no
2001:48d0:101:501::1592001:610:510:115:192:42:115:98no
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:45a6no
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:acb4no
2001:4978:1fb:6400::d22001:770:1c:7:225:90ff:fe0c:acb4no
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4no
fd11:1111:1111::11112001:770:1c:7:225:90ff:fe0c:acb4no
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a00:1f78:afxx::/40/1208893yes
2a00:1f78:afxx::/40/1128893yes
2a00:1f78:afxx::/40/1048893yes
2a00:1f78:afxx::/40/968893yes
2a00:1f78:afxx::/40/888893yes
2a00:1f78:afxx::/40/808893yes
2a00:1f78:afxx::/40/728893yes
2a00:1f78:afxx::/40/648893yes
2a00:1f78:afxx::/40/568893yes
2a00:1f78:afxx::/40/488893yes
2a00:1f78:afxx::/40/408893no
2a00:1f78:2fxx::/40/328893no
2a00:1ff8:afxx::/40/2447138no
2a00:9f78:afxx::/40/16UNROUTEDno

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)
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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