Session Report
Test run at: 2016-10-24 17:57:02 GMT
Client Prefix (v4): 185.82.20.x/24
Client AS (v4): 44066 (DE-FirstColo)
IPv4 Probes: 88
Client Prefix (v6): 2a05:8b81:10xx::/40
Client AS (v6): 44066 (DE-FirstColo)
IPv6 Probes: 63
Outbound spoofing summary (from the client to our server) Source address type IPv4 IPv6 Private - RFC1918 or ULA blocked received Routable blocked received Largest spoofable neighbor prefix length /22 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 (185.82.20.x/24) can spoof 1023 neighboring addresses (within your /22 prefix)
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 185.82.20.x/24 /31 44066 yes 185.82.20.x/24 /30 44066 yes 185.82.20.x/24 /29 44066 yes 185.82.20.x/24 /28 44066 yes 185.82.20.x/24 /27 44066 yes 185.82.20.x/24 /26 44066 yes 185.82.20.x/24 /25 44066 yes 185.82.20.x/24 /24 44066 yes 185.82.21.x/24 /23 44066 yes 185.82.22.x/24 /22 44066 yes 185.82.16.x/24 /21 29545 no 185.82.28.x/24 /20 49100 no 185.82.4.x/24 /19 201214 no 185.82.52.x/24 /18 42475 no 185.82.84.x/24 /17 198710 no 185.82.148.x/24 /16 41605 no 185.83.20.x/24 /15 34989 no 185.80.20.x/24 /14 201273 no 185.86.20.x/24 /13 44345 no 185.90.20.x/24 /12 203501 no 185.66.20.x/24 /11 59904 no 185.114.20.x/24 /10 201978 no 185.18.20.x/24 /9 34975 no 185.210.20.x/24 /8 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)
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:
Summary:
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 yes fd11:1111:1111::1111 2001:770:18:7:225:90ff:fe0c:acb4 yes
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.Feedback:
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