Session Report
Test run at: 2021-10-03 01:23:44 GMT
Client Prefix (v4): 66.187.5.x/24
Client AS (v4): 399804 (HOSTODO)
IPv4 Probes: 66
Client Prefix (v6): 2606:65c0:xx::/40
Client AS (v6): 399804 (HOSTODO)
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server) Source address type IPv4 IPv6 Private - RFC1918 or ULA blocked blocked Routable ✔ blocked ✔ blocked Largest spoofable neighbor prefix length none /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.
IPv4 Adjacent Netblock Testing:
Your host (66.187.5.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 66.187.5.x/24 /31 399804 no 66.187.5.x/24 /30 399804 no 66.187.5.x/24 /29 399804 no 66.187.5.x/24 /28 399804 no 66.187.5.x/24 /27 399804 no 66.187.5.x/24 /26 399804 no 66.187.5.x/24 /25 399804 no 66.187.5.x/24 /24 399804 no 66.187.4.x/24 /23 399804 no 66.187.7.x/24 /22 UNROUTED no 66.187.1.x/24 /21 UNROUTED no 66.187.13.x/24 /20 UNROUTED no 66.187.21.x/24 /19 63133 no 66.187.37.x/24 /18 14703 no 66.187.69.x/24 /17 40156 no 66.187.133.x/24 /16 33327 no 66.186.5.x/24 /15 7296 no 66.185.5.x/24 /14 17306 no 66.191.5.x/24 /13 20115 no 66.179.5.x/24 /12 7381 no 66.171.5.x/24 /11 19201 no 66.155.5.x/24 /10 6640 no 66.251.5.x/24 /9 7029 no 66.59.5.x/24 /8 17358 no Meaning of status in Received column:
no Packets spoofed from adjacent netblock were not received, probably due to blocking
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 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 2001:610:510:115:192:42:115:98 no 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 no 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 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
Summary:
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 2606:65c0:xx::/40 /120 399804 yes 2606:65c0:xx::/40 /112 399804 yes 2606:65c0:xx::/40 /104 399804 yes 2606:65c0:xx::/40 /96 399804 yes 2606:65c0:xx::/40 /88 399804 yes 2606:65c0:xx::/40 /80 399804 yes 2606:65c0:xx::/40 /72 399804 yes 2606:65c0:xx::/40 /64 399804 yes 2606:65c0:xx::/40 /56 399804 no 2606:65c0:xx::/40 /48 399804 no 2606:65c0:xx::/40 /40 UNROUTED no 2606:65c0:80xx::/40 /32 UNROUTED no 2606:6540:xx::/40 /24 UNROUTED no 2606:e5c0:xx::/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.