Session Report
Test run at: 2020-10-05 18:44:20 GMT
Client Prefix (v4): 23.157.112.x/24
Client AS (v4): 62538 (IPFAIL)
IPv4 Probes: 75
Client Prefix (v6): 2605:c640:dxx::/40
Client AS (v6): 62538 (IPFAIL)
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 blocked Largest spoofable neighbor prefix length /31 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 (23.157.112.x/24) can spoof 1 neighboring addresses (within your /31 prefix)
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 23.157.112.x/24 /31 62538 yes 23.157.112.x/24 /30 62538 no 23.157.112.x/24 /29 62538 no 23.157.112.x/24 /28 62538 no 23.157.112.x/24 /27 62538 no 23.157.112.x/24 /26 62538 no 23.157.112.x/24 /25 62538 no 23.157.112.x/24 /24 62538 no 23.157.113.x/24 /23 UNROUTED no 23.157.114.x/24 /22 UNROUTED no 23.157.116.x/24 /21 UNROUTED no 23.157.120.x/24 /20 UNROUTED no 23.157.96.x/24 /19 394752 no 23.157.80.x/24 /18 UNROUTED no 23.157.48.x/24 /17 UNROUTED no 23.157.240.x/24 /16 21527 no 23.156.112.x/24 /15 10753 no 23.159.112.x/24 /14 397131 no 23.153.112.x/24 /13 14756 no 23.149.112.x/24 /12 57782 no 23.141.112.x/24 /11 34553 no 23.189.112.x/24 /10 UNROUTED no 23.221.112.x/24 /9 16625 no 23.29.112.x/24 /8 54540 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 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 2001:770:18:7:225:90ff:fe0c:acb4 no 2001:4978:1fb:6400::d2 2001:770:18:7:225:90ff:fe0c:acb4 no 2001:49aa:111:aa00::11 2001:770:18:7:225:90ff:fe0c:acb4 no 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 no 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 2605:c640:dxx::/40 /120 62538 no 2605:c640:dxx::/40 /112 62538 no 2605:c640:dxx::/40 /104 62538 no 2605:c640:dxx::/40 /96 62538 no 2605:c640:dxx::/40 /88 62538 no 2605:c640:dxx::/40 /80 62538 no 2605:c640:dxx::/40 /72 62538 no 2605:c640:dxx::/40 /64 62538 no 2605:c640:dxx::/40 /56 62538 no 2605:c640:dxx::/40 /48 62538 no 2605:c640:dxx::/40 /40 62538 no 2605:c640:8dxx::/40 /32 62538 no 2605:c6c0:dxx::/40 /24 UNROUTED no 2605:4640:dxx::/40 /16 UNROUTED 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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