Test run at: 2024-04-03 03:29:41 GMT
Client Prefix (v4): 160.238.185.x/24
Client AS (v4): 265728
IPv4 Probes: 66
Client Prefix (v6): 2803:3c0:15xx::/40
Client AS (v6): 265728
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server) Source address type IPv4 IPv6 Private - RFC1918 or ULA rewritten received Routable received received Largest spoofable neighbor prefix length none /48
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:
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 (160.238.185.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 160.238.185.x/24 /31 265728 sendto 160.238.185.x/24 /30 265728 sendto 160.238.185.x/24 /29 265728 sendto 160.238.185.x/24 /28 265728 sendto 160.238.185.x/24 /27 265728 rewritten 160.238.185.x/24 /26 265728 sendto 160.238.185.x/24 /25 265728 sendto 160.238.185.x/24 /24 265728 rewritten 160.238.184.x/24 /23 265728 sendto 160.238.187.x/24 /22 265728 sendto 160.238.189.x/24 /21 266642 natblock 160.238.177.x/24 /20 265898 sendto 160.238.169.x/24 /19 265725 natblock 160.238.153.x/24 /18 262881 sendto 160.238.249.x/24 /17 266564 sendto 160.238.57.x/24 /16 36974 natblock 160.239.185.x/24 /15 9366 rewritten 160.236.185.x/24 /14 UNROUTED sendto 160.234.185.x/24 /13 UNROUTED sendto 160.230.185.x/24 /12 1983 sendto 160.254.185.x/24 /11 UNROUTED rewritten 160.206.185.x/24 /10 UNROUTED rewritten 160.174.185.x/24 /9 6713 sendto 160.110.185.x/24 /8 UNROUTED rewritten 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. rewritten The source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers. sendto The spoofer client was unable to send spoofed headers due to an operating system restriction.
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:
IPv6 Adjacent Netblock Testing:
Spoofed source address Destination Received 2001:48d0:101:501::159 2001:48d0:101:501::242 no 2001:4978:1fb:6400::d2 2001:48d0:101:501::242 no 2001:49aa:111:aa00::11 2001:48d0:101:501::242 yes fd11:1111:1111::1111 2001:48d0:101:501::242 no 2001:48d0:101:501::159 2001:48d0:101:501::247 no 2001:4978:1fb:6400::d2 2001:48d0:101:501::247 yes 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 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 2001:638:902:2000:ba27:ebff:fe86:2c51 yes 2001:4978:1fb:6400::d2 2001:638:902:2000:ba27:ebff:fe86:2c51 no 2001:49aa:111:aa00::11 2001:638:902:2000:ba27:ebff:fe86:2c51 no fd11:1111:1111::1111 2001:638:902:2000:ba27:ebff:fe86:2c51 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 2001:48d0:101:501::159 2607:8400:2880:4::80df:9d0d yes 2001:4978:1fb:6400::d2 2607:8400:2880:4::80df:9d0d yes 2001:49aa:111:aa00::11 2607:8400:2880:4::80df:9d0d yes fd11:1111:1111::1111 2607:8400:2880:4::80df:9d0d no 2001:48d0:101:501::159 2607:f278:2:13:da3a:ddff:fe30:ce14 yes 2001:4978:1fb:6400::d2 2607:f278:2:13:da3a:ddff:fe30:ce14 yes 2001:49aa:111:aa00::11 2607:f278:2:13:da3a:ddff:fe30:ce14 yes fd11:1111:1111::1111 2607:f278:2:13:da3a:ddff:fe30:ce14 yes
Summary:
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 2803:3c0:15xx::/40 /120 265728 sendto 2803:3c0:15xx::/40 /112 265728 yes 2803:3c0:15xx::/40 /104 265728 sendto 2803:3c0:15xx::/40 /96 265728 yes 2803:3c0:15xx::/40 /88 265728 sendto 2803:3c0:15xx::/40 /80 265728 no 2803:3c0:15xx::/40 /72 265728 yes 2803:3c0:15xx::/40 /64 265728 yes 2803:3c0:15xx::/40 /56 265728 sendto 2803:3c0:15xx::/40 /48 265728 yes 2803:3c0:15xx::/40 /40 265728 sendto 2803:3c0:95xx::/40 /32 265728 sendto 2803:340:15xx::/40 /24 264685 sendto 2803:83c0:15xx::/40 /16 UNROUTED sendto Meaning of status in Received column:
no Packets spoofed from adjacent netblock were not received, probably due to blocking yes Packets spoofed from adjacent netblock were received (but that netblock is within the source AS) 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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