Test run at: 2020-07-01 06:58:04 GMTIPv4 AS Route:
Client Prefix (v4): 200.58.73.x/24
Client AS (v4): 27839
IPv4 Probes: 75
Client Prefix (v6): 2803:9400:xx::/40
Client AS (v6): 27839
IPv6 Probes: 68
Outbound spoofing summary (from the client to our server) Source address type IPv4 IPv6 Private - RFC1918 or ULA blocked ✔ blocked Routable ✔ blocked received Largest spoofable neighbor prefix length /19 /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 8191 neighboring addresses (within your /19 prefix)
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 200.58.73.x/24 /31 27839 no 200.58.73.x/24 /30 27839 no 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 no 200.58.9.x/24 /17 14551 no 200.58.201.x/24 /16 13489 no 200.59.73.x/24 /15 10617 no 200.56.73.x/24 /14 6503 no 200.62.73.x/24 /13 14754 no 200.50.73.x/24 /12 UNROUTED no 200.42.73.x/24 /11 10481 no 200.26.73.x/24 /10 10834 no 200.122.73.x/24 /9 10481 no 200.186.73.x/24 /8 3549 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)
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 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 no 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 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 2001:770:18:7:225:90ff: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 no 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 yes 2001:49aa:111:aa00::11 2001:df0:4:800:21c:c0ff:feb2:ad5f yes fd11:1111:1111::1111 2001:df0:4:800:21c:c0ff:feb2:ad5f no
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:
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.