Session Report
Test run at: 2023-08-23 14:14:20 GMTIPv4 AS Route:
Client Prefix (v4): 92.223.66.x/24
Client AS (v4): 199524 (GCORE)
IPv4 Probes: 63
Client Prefix (v6): 2a03:90c0:xx::/40
Client AS (v6): 199524 (GCORE)
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server) Source address type IPv4 IPv6 Private - RFC1918 or ULA received received Routable received received Largest spoofable neighbor prefix length /8 /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 (92.223.66.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 92.223.66.x/24 /31 199524 yes 92.223.66.x/24 /30 199524 yes 92.223.66.x/24 /29 199524 yes 92.223.66.x/24 /28 199524 yes 92.223.66.x/24 /27 199524 yes 92.223.66.x/24 /26 199524 yes 92.223.66.x/24 /25 199524 yes 92.223.66.x/24 /24 199524 yes 92.223.67.x/24 /23 210756 yes 92.223.64.x/24 /22 210756 yes 92.223.70.x/24 /21 202422 yes 92.223.74.x/24 /20 199524 yes 92.223.82.x/24 /19 199524 yes 92.223.98.x/24 /18 199524 yes 92.223.2.x/24 /17 UNROUTED no 92.223.194.x/24 /16 12874 yes 92.222.66.x/24 /15 16276 yes 92.221.66.x/24 /14 29695 yes 92.219.66.x/24 /13 3209 yes 92.215.66.x/24 /12 3209 yes 92.207.66.x/24 /11 31655 yes 92.255.66.x/24 /10 49505 yes 92.159.66.x/24 /9 3215 yes 92.95.66.x/24 /8 15557 yes 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 yes Packets spoofed from adjacent netblock were received (but that netblock is within the source AS)
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 2001:48d0:101:501::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 2a03:90c0:xx::/40 /120 199524 yes 2a03:90c0:xx::/40 /112 199524 yes 2a03:90c0:xx::/40 /104 199524 yes 2a03:90c0:xx::/40 /96 199524 yes 2a03:90c0:xx::/40 /88 199524 yes 2a03:90c0:xx::/40 /80 199524 yes 2a03:90c0:xx::/40 /72 199524 yes 2a03:90c0:xx::/40 /64 199524 yes 2a03:90c0:xx::/40 /56 199524 yes 2a03:90c0:xx::/40 /48 199524 yes 2a03:90c0:xx::/40 /40 199524 yes 2a03:90c0:80xx::/40 /32 UNROUTED yes 2a03:9040:xx::/40 /24 61281 yes 2a03:10c0:xx::/40 /16 61044 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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