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Session Report

Summary:
Test run at: 2023-11-19 12:15:00 GMT
Client Prefix (v4): 164.18.97.x/24
Client AS (v4): 2777 (DBP)
IPv4 Probes: 69
Client Prefix (v6): 2a07:b982:c0xx::/40
Client AS (v6): 2777 (DBP)
IPv6 Probes: 60
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 /23none
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 (164.18.97.x/24) can spoof 511 neighboring addresses (within your /23 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
164.18.97.x/24/312777yes
164.18.97.x/24/302777yes
164.18.97.x/24/292777no
164.18.97.x/24/282777yes
164.18.97.x/24/272777no
164.18.97.x/24/262777no
164.18.97.x/24/252777no
164.18.97.x/24/242777no
164.18.96.x/24/232777yes
164.18.99.x/24/222777no
164.18.101.x/24/212777no
164.18.105.x/24/20UNROUTEDno
164.18.113.x/24/19UNROUTEDno
164.18.65.x/24/18UNROUTEDno
164.18.33.x/24/17209598no
164.18.225.x/24/16UNROUTEDno
164.19.97.x/24/15UNROUTEDno
164.16.97.x/24/14UNROUTEDno
164.22.97.x/24/13UNROUTEDno
164.26.97.x/24/12UNROUTEDno
164.2.97.x/24/11UNROUTEDno
164.50.97.x/24/10395877no
164.82.97.x/24/9UNROUTEDno
164.146.97.x/24/837130no

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 able to spoof routable, non-adjacent source addresses through the first 1 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::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
2a07:b982:c0xx::/40/1202777no
2a07:b982:c0xx::/40/1122777no
2a07:b982:c0xx::/40/1042777no
2a07:b982:c0xx::/40/962777no
2a07:b982:c0xx::/40/882777no
2a07:b982:c0xx::/40/802777no
2a07:b982:c0xx::/40/722777no
2a07:b982:c0xx::/40/642777no
2a07:b982:c0xx::/40/562777no
2a07:b982:c0xx::/40/482777no
2a07:b982:c0xx::/40/40UNROUTEDno
2a07:b982:40xx::/40/32UNROUTEDno
2a07:b902:c0xx::/40/24UNROUTEDno
2a07:3982:c0xx::/40/16UNROUTEDno

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
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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