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Session Report

Summary:
Test run at: 2021-12-23 23:49:59 GMT
Client Prefix (v4): 213.5.132.x/24
Client AS (v4): 210985 (BISHOP)
IPv4 Probes: 63
Client Prefix (v6): 2a0c:b641:xx::/40
Client AS (v6): 210985 (BISHOP)
IPv6 Probes: 52
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 (213.5.132.x/24) can spoof 255 neighboring addresses (within your /24 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
213.5.132.x/24/31210985yes
213.5.132.x/24/30210985yes
213.5.132.x/24/29210985yes
213.5.132.x/24/28210985yes
213.5.132.x/24/27210985yes
213.5.132.x/24/26210985yes
213.5.132.x/24/25210985yes
213.5.132.x/24/24210985yes
213.5.133.x/24/239009no
213.5.134.x/24/22UNROUTEDno
213.5.128.x/24/21210697no
213.5.140.x/24/2050231no
213.5.148.x/24/19199503no
213.5.164.x/24/1815673no
213.5.196.x/24/1750130no
213.5.4.x/24/16200414no
213.4.132.x/24/153352no
213.7.132.x/24/146866no
213.1.132.x/24/132856no
213.13.132.x/24/123243no
213.21.132.x/24/115396no
213.37.132.x/24/106739no
213.69.132.x/24/9702no
213.133.132.x/24/86908no

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::1592001:610:510:115:192:42:115:98yes
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
2a0c:b641:xx::/40/120210985yes
2a0c:b641:xx::/40/112210985yes
2a0c:b641:xx::/40/104210985yes
2a0c:b641:xx::/40/96210985yes
2a0c:b641:xx::/40/88210985yes
2a0c:b641:xx::/40/80210985yes
2a0c:b641:xx::/40/72210985yes
2a0c:b641:xx::/40/64210985yes
2a0c:b641:xx::/40/56210985yes
2a0c:b641:xx::/40/48210985yes
2a0c:b641:xx::/40/40UNROUTEDyes
2a0c:b641:80xx::/40/32UNROUTEDyes
2a0c:b6c1:xx::/40/24UNROUTEDyes
2a0c:3641: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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