Session Report
Test run at: 2024-12-03 12:11:02 GMTIPv4 AS Route:
Client Prefix (v4): 217.18.253.x/24
Client AS (v4): 13124 (A1BG)
IPv4 Probes: 69
Client Prefix (v6): 2a00:4802:32xx::/40
Client AS (v6): 13124 (A1BG)
IPv6 Probes: 68
Outbound spoofing summary (from the client to our server) Source address type IPv4 IPv6 Private - RFC1918 or ULA received blocked Routable received blocked Largest spoofable neighbor prefix length /8 /64
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 (217.18.253.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 217.18.253.x/24 /31 13124 no 217.18.253.x/24 /30 13124 yes 217.18.253.x/24 /29 13124 yes 217.18.253.x/24 /28 13124 yes 217.18.253.x/24 /27 13124 no 217.18.253.x/24 /26 13124 no 217.18.253.x/24 /25 13124 no 217.18.253.x/24 /24 13124 no 217.18.252.x/24 /23 8717 yes 217.18.255.x/24 /22 13124 no 217.18.249.x/24 /21 8717 yes 217.18.245.x/24 /20 8717 yes 217.18.237.x/24 /19 29680 yes 217.18.221.x/24 /18 200780 yes 217.18.189.x/24 /17 16205 yes 217.18.125.x/24 /16 16210 yes 217.19.253.x/24 /15 60819 yes 217.16.253.x/24 /14 25479 yes 217.22.253.x/24 /13 3257 yes 217.26.253.x/24 /12 62023 yes 217.2.253.x/24 /11 3320 yes 217.50.253.x/24 /10 6805 yes 217.82.253.x/24 /9 3320 yes 217.146.253.x/24 /8 6703 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 no 2001:4978:1fb:6400::d2 2001:48d0:101:501::242 no 2001:49aa:111:aa00::11 2001:48d0:101:501::242 no 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 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 2001:770:1c: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 2001:48d0:101:501::159 2607:8400:2880:4::80df:9d0d no 2001:4978:1fb:6400::d2 2607:8400:2880:4::80df:9d0d no 2001:49aa:111:aa00::11 2607:8400:2880:4::80df:9d0d no fd11:1111:1111::1111 2607:8400:2880:4::80df:9d0d no 2001:48d0:101:501::159 2607:f278:2:13:da3a:ddff:fe30:ce14 no 2001:4978:1fb:6400::d2 2607:f278:2:13:da3a:ddff:fe30:ce14 no 2001:49aa:111:aa00::11 2607:f278:2:13:da3a:ddff:fe30:ce14 no fd11:1111:1111::1111 2607:f278:2:13:da3a:ddff:fe30:ce14 no
Summary:
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 2a00:4802:32xx::/40 /120 13124 yes 2a00:4802:32xx::/40 /112 13124 yes 2a00:4802:32xx::/40 /104 13124 yes 2a00:4802:32xx::/40 /96 13124 yes 2a00:4802:32xx::/40 /88 13124 yes 2a00:4802:32xx::/40 /80 13124 yes 2a00:4802:32xx::/40 /72 13124 yes 2a00:4802:32xx::/40 /64 13124 yes 2a00:4802:32xx::/40 /56 13124 no 2a00:4802:32xx::/40 /48 13124 no 2a00:4802:32xx::/40 /40 8717 no 2a00:4802:b2xx::/40 /32 8717 no 2a00:4882:32xx::/40 /24 UNROUTED no 2a00:c802:32xx::/40 /16 UNROUTED no 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)
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.