Session Report
Test run at: 2023-03-31 19:13:57 GMT
Client Prefix (v4): 200.189.56.x/24
Client AS (v4): 14282
IPv4 Probes: 60
Client Prefix (v6): 2804:84:xx::/40
Client AS (v6): 14282
IPv6 Probes: 52
Outbound spoofing summary (from the client to our server) Source address type IPv4 IPv6 Private - RFC1918 or ULA received unknown Routable ✔ received unknown Largest spoofable neighbor prefix length /8 none
Spoof status key received Spoofed packet was received. ✔ Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it. rewritten Spoofed packet was received, but the source address was changed en route. blocked Spoofed packet was not received, but unspoofed packet was. unknown Neither spoofed nor unspoofed packet was received.
Warnings:
- ⚠️ Your host is behind a Network Address Translation (NAT) router or firewall but spoofed packets are still being received without modification. See here for more information.
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 (200.189.56.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 200.189.56.x/24 /31 14282 yes 200.189.56.x/24 /30 14282 yes 200.189.56.x/24 /29 14282 yes 200.189.56.x/24 /28 14282 natblock 200.189.56.x/24 /27 14282 yes 200.189.56.x/24 /26 14282 yes 200.189.56.x/24 /25 14282 yes 200.189.56.x/24 /24 14282 yes 200.189.57.x/24 /23 14282 yes 200.189.58.x/24 /22 14282 yes 200.189.60.x/24 /21 14282 yes 200.189.48.x/24 /20 14204 yes 200.189.40.x/24 /19 10906 yes 200.189.24.x/24 /18 13761 yes 200.189.120.x/24 /17 19723 yes 200.189.184.x/24 /16 13878 yes 200.188.56.x/24 /15 11172 yes 200.191.56.x/24 /14 4230 yes 200.185.56.x/24 /13 16685 yes 200.181.56.x/24 /12 8167 yes 200.173.56.x/24 /11 4230 yes 200.157.56.x/24 /10 26615 yes 200.253.56.x/24 /9 4230 yes 200.61.56.x/24 /8 19037 yes Meaning of status in Received column:
yes Packets spoofed from adjacent netblock were received yes Packets spoofed from adjacent netblock were received (but that netblock is within the source AS) natblock Spoofed 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 able to spoof routable, non-adjacent source addresses through the first 10 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:
IPv6 Adjacent Netblock Testing:
Spoofed source address Destination Received 2001:48d0:101:501::159 2001:40b0:7500:280::5458:517a no 2001:4978:1fb:6400::d2 2001:40b0:7500:280::5458:517a no 2001:49aa:111:aa00::11 2001:40b0:7500:280::5458:517a no fd11:1111:1111::1111 2001:40b0:7500:280::5458:517a no 2001:48d0:101:501::159 2001:48d0:101:501::247 no 2001:4978:1fb:6400::d2 2001:48d0:101:501::247 no 2001:49aa:111:aa00::11 2001:48d0:101:501::247 no fd11:1111:1111::1111 2001:48d0:101:501::247 no 2001:48d0:101:501::159 2001:610:510:115:192:42:115:98 no 2001:4978:1fb:6400::d2 2001:610:510:115:192:42:115:98 no 2001:49aa:111:aa00::11 2001:610:510:115:192:42:115:98 no fd11:1111:1111::1111 2001:610:510:115:192:42:115:98 no 2001:48d0:101:501::159 2001:630:212:225:225:90ff:fe0c:45a6 no 2001:4978:1fb:6400::d2 2001:630:212:225:225:90ff:fe0c:45a6 no 2001:49aa:111:aa00::11 2001:630:212:225:225:90ff:fe0c:45a6 no fd11:1111:1111::1111 2001:630:212:225:225:90ff:fe0c:45a6 no 2001:48d0:101:501::159 2001:770:1c:7:225:90ff:fe0c:acb4 no 2001:4978:1fb:6400::d2 2001:770:1c:7:225:90ff:fe0c:acb4 no 2001:49aa:111:aa00::11 2001:770:1c:7:225:90ff:fe0c:acb4 no fd11:1111:1111::1111 2001:770:1c:7:225:90ff:fe0c:acb4 no
Summary:
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 2804:84:xx::/40 /120 14282 sendto 2804:84:xx::/40 /112 14282 sendto 2804:84:xx::/40 /104 14282 sendto 2804:84:xx::/40 /96 14282 sendto 2804:84:xx::/40 /88 14282 sendto 2804:84:xx::/40 /80 14282 sendto 2804:84:xx::/40 /72 14282 sendto 2804:84:xx::/40 /64 14282 sendto 2804:84:xx::/40 /56 14282 sendto 2804:84:xx::/40 /48 14282 sendto 2804:84:xx::/40 /40 14282 sendto 2804:84:80xx::/40 /32 14282 sendto 2804:4:xx::/40 /24 28667 sendto 2804:8084:xx::/40 /16 271756 sendto Meaning of status in Received column:
sendto The spoofer client was unable to send spoofed headers due to an operating system restriction.
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.Feedback:
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