Test run at: 2019-02-12 00:29:31 GMTIPv4 AS Route:
Client Prefix (v4): 200.58.73.x/24
Client AS (v4): 27839
IPv4 Probes: 116
Client Prefix (v6): 2803:9400:xx::/40
Client AS (v6): 27839
IPv6 Probes: 82
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 (200.58.73.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 200.58.73.x/24 /31 27839 yes 200.58.73.x/24 /30 27839 yes 200.58.73.x/24 /29 27839 yes 200.58.73.x/24 /28 27839 yes 200.58.73.x/24 /27 27839 yes 200.58.73.x/24 /26 27839 yes 200.58.73.x/24 /25 27839 yes 200.58.73.x/24 /24 27839 yes 200.58.72.x/24 /23 27839 yes 200.58.75.x/24 /22 27839 yes 200.58.77.x/24 /21 27839 yes 200.58.65.x/24 /20 27839 yes 200.58.89.x/24 /19 27839 yes 200.58.105.x/24 /18 27823 yes 200.58.9.x/24 /17 14551 yes 200.58.201.x/24 /16 13489 yes 200.59.73.x/24 /15 10617 yes 200.56.73.x/24 /14 6503 yes 200.62.73.x/24 /13 14754 yes 200.50.73.x/24 /12 11139 yes 200.42.73.x/24 /11 10481 yes 200.26.73.x/24 /10 10834 yes 200.122.73.x/24 /9 10481 yes 200.186.73.x/24 /8 3549 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)
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:ec4:7aff:fea8:71a8 2001:388:1:5001:21c:c0ff:fea2:4a3a yes 2001:4978:1fb:6400::d2 2001:388:1:5001:21c:c0ff:fea2:4a3a yes 2001:49aa:111:aa00::11 2001:388:1:5001:21c:c0ff:fea2:4a3a yes fd11:1111:1111::1111 2001:388:1:5001:21c:c0ff:fea2:4a3a yes 2001:48d0:101:501:ec4:7aff:fea8:71a8 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:ec4:7aff:fea8:71a8 2001:610:510:115:192:42:115:98 yes 2001:4978:1fb:6400::d2 2001:610:510:115:192:42:115:98 yes 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:ec4:7aff:fea8:71a8 2001:630:212:225:225:90ff:fe0c:45a6 yes 2001:4978:1fb:6400::d2 2001:630:212:225:225:90ff:fe0c:45a6 yes 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:ec4:7aff:fea8:71a8 2001:708:40:2001:21c:c0ff:fea2:4c5c yes 2001:4978:1fb:6400::d2 2001:708:40:2001:21c:c0ff:fea2:4c5c yes 2001:49aa:111:aa00::11 2001:708:40:2001:21c:c0ff:fea2:4c5c yes fd11:1111:1111::1111 2001:708:40:2001:21c:c0ff:fea2:4c5c no 2001:48d0:101:501:ec4:7aff:fea8:71a8 2001:770:18:7:225:90ff:fe0c:acb4 yes 2001:4978:1fb:6400::d2 2001:770:18:7:225:90ff:fe0c:acb4 yes 2001:49aa:111:aa00::11 2001:770:18:7:225:90ff:fe0c:acb4 yes fd11:1111:1111::1111 2001:770:18:7:225:90ff:fe0c:acb4 yes 2001:48d0:101:501:ec4:7aff:fea8:71a8 2001:df0:4:800:21c:c0ff:feb2:ad5f yes 2001:4978:1fb:6400::d2 2001:df0:4:800:21c:c0ff:feb2:ad5f yes 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 2001:48d0:101:501:ec4:7aff:fea8:71a8 2607:f278:2:13:ba27:ebff:fe3f:b21e yes 2001:4978:1fb:6400::d2 2607:f278:2:13:ba27:ebff:fe3f:b21e yes 2001:49aa:111:aa00::11 2607:f278:2:13:ba27:ebff:fe3f:b21e yes fd11:1111:1111::1111 2607:f278:2:13:ba27:ebff:fe3f:b21e yes
Summary:
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 2803:9400:xx::/40 /120 27839 yes 2803:9400:xx::/40 /112 27839 yes 2803:9400:xx::/40 /104 27839 yes 2803:9400:xx::/40 /96 27839 yes 2803:9400:xx::/40 /88 27839 yes 2803:9400:xx::/40 /80 27839 yes 2803:9400:xx::/40 /72 27839 yes 2803:9400:xx::/40 /64 27839 yes 2803:9400:xx::/40 /56 27839 yes 2803:9400:xx::/40 /48 27839 yes 2803:9400:xx::/40 /40 27839 yes 2803:9400:80xx::/40 /32 27839 yes 2803:9480:xx::/40 /24 UNROUTED yes 2803:1400:xx::/40 /16 27887 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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