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Session Report

Summary:
Test run at: 2022-08-04 21:28:04 GMT
Client Prefix (v4): 177.10.120.x/24
Client AS (v4): 53236
IPv4 Probes: 60
Client Prefix (v6): 2804:2f0:xx::/40
Client AS (v6): 53236
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 none/32
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 (177.10.120.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
177.10.120.x/24/3153236natblock
177.10.120.x/24/3053236natblock
177.10.120.x/24/2953236natblock
177.10.120.x/24/2853236natblock
177.10.120.x/24/2753236natblock
177.10.120.x/24/2653236natblock
177.10.120.x/24/2553236natblock
177.10.120.x/24/2453236natblock
177.10.121.x/24/2353236natblock
177.10.122.x/24/2253236natblock
177.10.124.x/24/2152918natblock
177.10.112.x/24/2053235natblock
177.10.104.x/24/19262848natblock
177.10.88.x/24/18263014natblock
177.10.56.x/24/17262847natblock
177.10.248.x/24/16262274natblock
177.11.120.x/24/15262296natblock
177.8.120.x/24/14263028natblock
177.14.120.x/24/1353237natblock
177.2.120.x/24/128167natblock
177.26.120.x/24/1126599natblock
177.42.120.x/24/1018881natblock
177.74.120.x/24/953184natblock
177.138.120.x/24/827699natblock

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::1592001:610:510:115:192:42:115:98no
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
2804:2f0:xx::/40/12053236yes
2804:2f0:xx::/40/11253236yes
2804:2f0:xx::/40/10453236yes
2804:2f0:xx::/40/9653236yes
2804:2f0:xx::/40/8853236yes
2804:2f0:xx::/40/8053236yes
2804:2f0:xx::/40/7253236yes
2804:2f0:xx::/40/6453236yes
2804:2f0:xx::/40/5653236yes
2804:2f0:xx::/40/4853236yes
2804:2f0:xx::/40/4053236yes
2804:2f0:80xx::/40/3253236yes
2804:270:xx::/40/24262814no
2804:82f0:xx::/40/16272166no

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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