Session Report
Test run at: 2023-07-07 01:41:00 GMTIPv4 AS Route:
Client Prefix (v4): 187.1.3.x/24
Client AS (v4): 263880
IPv4 Probes: 60
Client Prefix (v6): 2804:2d4:80xx::/40
Client AS (v6): 263880
IPv6 Probes: 52
Outbound spoofing summary (from the client to our server) Source address type IPv4 IPv6 Private - RFC1918 or ULA blocked received Routable blocked received Largest spoofable neighbor prefix length none /16
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.
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 (187.1.3.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 187.1.3.x/24 /31 263880 natblock 187.1.3.x/24 /30 263880 natblock 187.1.3.x/24 /29 263880 natblock 187.1.3.x/24 /28 263880 natblock 187.1.3.x/24 /27 263880 natblock 187.1.3.x/24 /26 263880 natblock 187.1.3.x/24 /25 263880 natblock 187.1.3.x/24 /24 263880 natblock 187.1.2.x/24 /23 263880 natblock 187.1.1.x/24 /22 263880 natblock 187.1.7.x/24 /21 263880 natblock 187.1.11.x/24 /20 263880 natblock 187.1.19.x/24 /19 262272 natblock 187.1.35.x/24 /18 28246 natblock 187.1.67.x/24 /17 262659 natblock 187.1.131.x/24 /16 28299 natblock 187.0.3.x/24 /15 28283 natblock 187.3.3.x/24 /14 28573 natblock 187.5.3.x/24 /13 8167 natblock 187.9.3.x/24 /12 10429 natblock 187.17.3.x/24 /11 28261 natblock 187.33.3.x/24 /10 262545 natblock 187.65.3.x/24 /9 28573 natblock 187.129.3.x/24 /8 UNROUTED natblock Meaning of status in Received column:
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 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:
IPv6 Adjacent Netblock Testing:
Spoofed source address Destination Received 2001:48d0:101:501::159 2001:40b0:7500:280::5458:517a yes 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::242 yes 2001:4978:1fb:6400::d2 2001:48d0:101:501::242 yes 2001:49aa:111:aa00::11 2001:48d0:101:501::242 yes fd11:1111:1111::1111 2001:48d0:101:501::242 yes 2001:48d0:101:501::159 2001:48d0:101:501::247 yes 2001:4978:1fb:6400::d2 2001:48d0:101:501::247 yes 2001:49aa:111:aa00::11 2001:48d0:101:501::247 yes fd11:1111:1111::1111 2001:48d0:101:501::247 yes 2001:48d0:101:501::159 2001:610:510:115:192:42:115:98 yes 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 yes 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 yes 2001:4978:1fb:6400::d2 2001:770:1c:7:225:90ff:fe0c:acb4 yes 2001:49aa:111:aa00::11 2001:770:1c:7:225:90ff:fe0c:acb4 yes fd11:1111:1111::1111 2001:770:1c:7:225:90ff:fe0c:acb4 yes
Summary:
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 2804:2d4:80xx::/40 /120 263880 yes 2804:2d4:80xx::/40 /112 263880 yes 2804:2d4:80xx::/40 /104 263880 yes 2804:2d4:80xx::/40 /96 263880 yes 2804:2d4:80xx::/40 /88 263880 yes 2804:2d4:80xx::/40 /80 263880 yes 2804:2d4:80xx::/40 /72 263880 yes 2804:2d4:80xx::/40 /64 263880 yes 2804:2d4:80xx::/40 /56 263880 yes 2804:2d4:80xx::/40 /48 263880 yes 2804:2d4:80xx::/40 /40 263880 yes 2804:2d4:xx::/40 /32 UNROUTED yes 2804:254:80xx::/40 /24 262806 yes 2804:82d4:80xx::/40 /16 266640 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)
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.Feedback:
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