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Session Report

Summary:
Test run at: 2021-03-20 12:22:39 GMT
Client Prefix (v4): 177.23.168.x/24
Client AS (v4): 52913
IPv4 Probes: 66
Client Prefix (v6): 2804:1088:xx::/40
Client AS (v6): 52913
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 none/64

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 (177.23.168.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
177.23.168.x/24/3152913natblock
177.23.168.x/24/3052913natblock
177.23.168.x/24/2952913natblock
177.23.168.x/24/2852913natblock
177.23.168.x/24/2752913natblock
177.23.168.x/24/2652913natblock
177.23.168.x/24/2552913natblock
177.23.168.x/24/2452913natblock
177.23.169.x/24/2352913natblock
177.23.170.x/24/2252913natblock
177.23.172.x/24/2152913natblock
177.23.160.x/24/2052960natblock
177.23.184.x/24/1952935natblock
177.23.136.x/24/1852909natblock
177.23.232.x/24/1752938natblock
177.23.40.x/24/16263038natblock
177.22.168.x/24/15UNROUTEDnatblock
177.21.168.x/24/14262876natblock
177.19.168.x/24/1318881natblock
177.31.168.x/24/1226615natblock
177.7.168.x/24/118167natblock
177.55.168.x/24/10262507natblock
177.87.168.x/24/952583natblock
177.151.168.x/24/826615natblock

Meaning of status in Received column:

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::1592001:630:212:225:225:90ff: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
2001:48d0:101:501::1592001:df0:4:800:21c:c0ff:feb2:ad5fno
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
2804:1088:xx::/40/12052913yes
2804:1088:xx::/40/11252913yes
2804:1088:xx::/40/10452913yes
2804:1088:xx::/40/9652913yes
2804:1088:xx::/40/8852913yes
2804:1088:xx::/40/8052913yes
2804:1088:xx::/40/7252913yes
2804:1088:xx::/40/6452913yes
2804:1088:xx::/40/5652913no
2804:1088:xx::/40/4852913no
2804:1088:xx::/40/4052913no
2804:1088:80xx::/40/3252913no
2804:1008:xx::/40/24263615no
2804:9088:xx::/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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