Session Report
Test run at: 2017-10-20 01:26:04 GMT
Client Prefix (v4): 185.164.137.x/24
Client AS (v4): 62240 (Clouvider)
IPv4 Probes: 105
Client Prefix (v6): 2a04:92c7:xx::/40
Client AS (v6): 62240 (Clouvider)
IPv6 Probes: 68
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 none
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 (185.164.137.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 185.164.137.x/24 /31 62240 yes 185.164.137.x/24 /30 62240 yes 185.164.137.x/24 /29 62240 yes 185.164.137.x/24 /28 62240 yes 185.164.137.x/24 /27 62240 yes 185.164.137.x/24 /26 62240 yes 185.164.137.x/24 /25 62240 yes 185.164.137.x/24 /24 62240 yes 185.164.136.x/24 /23 62240 yes 185.164.139.x/24 /22 62240 yes 185.164.141.x/24 /21 UNROUTED no 185.164.129.x/24 /20 UNROUTED no 185.164.153.x/24 /19 199554 yes 185.164.169.x/24 /18 UNROUTED no 185.164.201.x/24 /17 29256 yes 185.164.9.x/24 /16 51319 yes 185.165.137.x/24 /15 35258 yes 185.166.137.x/24 /14 8462 yes 185.160.137.x/24 /13 UNROUTED no 185.172.137.x/24 /12 206905 yes 185.180.137.x/24 /11 UNROUTED no 185.132.137.x/24 /10 203457 yes 185.228.137.x/24 /9 UNROUTED no 185.36.137.x/24 /8 35368 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 13 IP hop(s).IPv6 probes:
IPv6 Adjacent Netblock Testing:
Spoofed source address Destination Received 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 2001:4978:1fb:6400::d2 2001:410:102:1::78 yes 2001:49aa:111:aa00::11 2001:410:102:1::78 yes fd11:1111:1111::1111 2001:410:102:1::78 yes 2001:4978:1fb:6400::d2 2001:410:90ff::5 yes 2001:49aa:111:aa00::11 2001:410:90ff::5 yes fd11:1111:1111::1111 2001:410:90ff::5 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 2001:4978:1fb: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 2001:4978:1fb: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 2001:4978:1fb: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 2001:4978:1fb: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 2001:4978:1fb: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
Summary:
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 2a04:92c7:xx::/40 /120 62240 no 2a04:92c7:xx::/40 /112 62240 no 2a04:92c7:xx::/40 /104 62240 no 2a04:92c7:xx::/40 /96 62240 no 2a04:92c7:xx::/40 /88 62240 no 2a04:92c7:xx::/40 /80 62240 no 2a04:92c7:xx::/40 /72 62240 no 2a04:92c7:xx::/40 /64 62240 no 2a04:92c7:xx::/40 /56 62240 no 2a04:92c7:xx::/40 /48 62240 no 2a04:92c7:xx::/40 /40 62240 no 2a04:92c7:80xx::/40 /32 62240 no 2a04:9247:xx::/40 /24 12552 no 2a04:12c7:xx::/40 /16 12552 no Meaning of status in Received column:
no Packets spoofed from adjacent netblock were not received, probably due to blocking
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.Feedback:
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