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Session Report

Summary:
Test run at: 2022-08-12 17:44:53 GMT
Client Prefix (v4): 179.108.233.x/24
Client AS (v4): 0
IPv4 Probes: 60
Client Prefix (v6): 2804:1cd8:dbxx::/40
Client AS (v6): 0
IPv6 Probes: 52
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 /18/48
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 (179.108.233.x/24) can spoof 16383 neighboring addresses (within your /18 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
179.108.233.x/24/31UNROUTEDyes
179.108.233.x/24/30UNROUTEDyes
179.108.233.x/24/29UNROUTEDyes
179.108.233.x/24/28UNROUTEDyes
179.108.233.x/24/27UNROUTEDyes
179.108.233.x/24/26UNROUTEDyes
179.108.233.x/24/25UNROUTEDyes
179.108.233.x/24/24UNROUTEDyes
179.108.232.x/24/23UNROUTEDyes
179.108.235.x/24/22UNROUTEDyes
179.108.237.x/24/21UNROUTEDyes
179.108.225.x/24/20UNROUTEDyes
179.108.249.x/24/19UNROUTEDnatblock
179.108.201.x/24/18UNROUTEDyes
179.108.169.x/24/17UNROUTEDnatblock
179.108.105.x/24/16UNROUTEDnatblock
179.109.233.x/24/15UNROUTEDnatblock
179.110.233.x/24/14UNROUTEDnatblock
179.104.233.x/24/13UNROUTEDnatblock
179.100.233.x/24/12UNROUTEDnatblock
179.124.233.x/24/11UNROUTEDnatblock
179.76.233.x/24/10UNROUTEDnatblock
179.44.233.x/24/9UNROUTEDnatblock
179.236.233.x/24/8UNROUTEDnatblock

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

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
2804:1cd8:dbxx::/40/120UNROUTEDyes
2804:1cd8:dbxx::/40/112UNROUTEDyes
2804:1cd8:dbxx::/40/104UNROUTEDyes
2804:1cd8:dbxx::/40/96UNROUTEDyes
2804:1cd8:dbxx::/40/88UNROUTEDyes
2804:1cd8:dbxx::/40/80UNROUTEDyes
2804:1cd8:dbxx::/40/72UNROUTEDyes
2804:1cd8:dbxx::/40/64UNROUTEDyes
2804:1cd8:dbxx::/40/56UNROUTEDyes
2804:1cd8:dbxx::/40/48UNROUTEDyes
2804:1cd8:dbxx::/40/40UNROUTEDno
2804:1cd8:5bxx::/40/32UNROUTEDno
2804:1c58:dbxx::/40/24UNROUTEDno
2804:9cd8:dbxx::/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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