Session Report
Test run at: 2021-02-28 04:05:42 GMTIPv4 AS Route:
Client Prefix (v4): 191.7.16.x/24
Client AS (v4): 262485
IPv4 Probes: 69
Client Prefix (v6): 2804:500:xx::/40
Client AS (v6): 262485
IPv6 Probes: 60
Outbound spoofing summary (from the client to our server) Source address type IPv4 IPv6 Private - RFC1918 or ULA ✔ blocked 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 (191.7.16.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 191.7.16.x/24 /31 262485 sendto 191.7.16.x/24 /30 262485 yes 191.7.16.x/24 /29 262485 yes 191.7.16.x/24 /28 262485 yes 191.7.16.x/24 /27 262485 yes 191.7.16.x/24 /26 262485 yes 191.7.16.x/24 /25 262485 yes 191.7.16.x/24 /24 262485 yes 191.7.17.x/24 /23 262485 yes 191.7.18.x/24 /22 262485 yes 191.7.20.x/24 /21 263307 yes 191.7.24.x/24 /20 263308 yes 191.7.0.x/24 /19 269237 yes 191.7.48.x/24 /18 263311 yes 191.7.80.x/24 /17 52901 yes 191.7.144.x/24 /16 263320 yes 191.6.16.x/24 /15 263546 yes 191.5.16.x/24 /14 263077 yes 191.3.16.x/24 /13 7738 yes 191.15.16.x/24 /12 26599 yes 191.23.16.x/24 /11 27699 yes 191.39.16.x/24 /10 53037 yes 191.71.16.x/24 /9 UNROUTED no 191.135.16.x/24 /8 26615 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) 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 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 2001:630:212:225:225:90ff: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 2001:48d0:101:501::159 2001:df0:4:800:21c:c0ff:feb2:ad5f yes 2001:4978:1fb:6400::d2 2001:df0:4:800:21c:c0ff:feb2:ad5f no 2001:49aa:111:aa00::11 2001:df0:4:800:21c:c0ff:feb2:ad5f no fd11:1111:1111::1111 2001:df0:4:800:21c:c0ff:feb2:ad5f no
Summary:
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 2804:500:xx::/40 /120 262485 yes 2804:500:xx::/40 /112 262485 yes 2804:500:xx::/40 /104 262485 yes 2804:500:xx::/40 /96 262485 yes 2804:500:xx::/40 /88 262485 yes 2804:500:xx::/40 /80 262485 yes 2804:500:xx::/40 /72 262485 yes 2804:500:xx::/40 /64 262485 yes 2804:500:xx::/40 /56 262485 yes 2804:500:xx::/40 /48 262485 yes 2804:500:xx::/40 /40 262485 yes 2804:500:80xx::/40 /32 262485 yes 2804:580:xx::/40 /24 262518 yes 2804:8500:xx::/40 /16 UNROUTED 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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