Test run at: 2017-07-21 13:05:23 GMT
Client Prefix (v4): 5.1.80.x/24
Client AS (v4): 30823 (COMBAHTON)
IPv4 Probes: 117
Client Prefix (v6): 2a01:367:c1xx::/40
Client AS (v6): 30823 (COMBAHTON)
IPv6 Probes: 77
Outbound spoofing summary (from the client to our server) Source address type IPv4 IPv6 Private - RFC1918 or ULA ✔ received 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.
IPv4 Adjacent Netblock Testing:
Your host (5.1.80.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 5.1.80.x/24 /31 30823 yes 5.1.80.x/24 /30 30823 yes 5.1.80.x/24 /29 30823 yes 5.1.80.x/24 /28 30823 yes 5.1.80.x/24 /27 30823 yes 5.1.80.x/24 /26 30823 yes 5.1.80.x/24 /25 30823 yes 5.1.80.x/24 /24 30823 yes 5.1.81.x/24 /23 30823 yes 5.1.82.x/24 /22 34549 yes 5.1.84.x/24 /21 34549 yes 5.1.88.x/24 /20 62217 yes 5.1.64.x/24 /19 34549 yes 5.1.112.x/24 /18 198738 yes 5.1.16.x/24 /17 21219 yes 5.1.208.x/24 /16 12638 yes 5.0.80.x/24 /15 29256 yes 5.3.80.x/24 /14 201083 yes 5.5.80.x/24 /13 12638 yes 5.9.80.x/24 /12 24940 yes 5.17.80.x/24 /11 41733 yes 5.33.80.x/24 /10 9158 yes 5.65.80.x/24 /9 5607 yes 5.129.80.x/24 /8 31200 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 24 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 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 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 no fd11:1111:1111::1111 2001:770:18:7:225:90ff:fe0c:acb4 no
Summary:
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 2a01:367:c1xx::/40 /120 30823 yes 2a01:367:c1xx::/40 /112 30823 yes 2a01:367:c1xx::/40 /104 30823 yes 2a01:367:c1xx::/40 /96 30823 yes 2a01:367:c1xx::/40 /88 30823 yes 2a01:367:c1xx::/40 /80 30823 yes 2a01:367:c1xx::/40 /72 30823 yes 2a01:367:c1xx::/40 /64 30823 yes 2a01:367:c1xx::/40 /56 30823 yes 2a01:367:c1xx::/40 /48 30823 yes 2a01:367:c1xx::/40 /40 30823 yes 2a01:367:41xx::/40 /32 30823 yes 2a01:3e7:c1xx::/40 /24 UNROUTED yes 2a01:8367:c1xx::/40 /16 UNROUTED yes Meaning of status in Received column:
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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