Test run at: 2016-11-28 09:01:30 GMT
Client Prefix (v4): 91.200.19.x/24
Client AS (v4): 1200 (AMS-IX1)
IPv4 Probes: 104
Client Prefix (v6): 2001:67c:1xx::/40
Client AS (v6): 1200 (AMS-IX1)
IPv6 Probes: 63
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 /24 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 (91.200.19.x/24) can spoof 255 neighboring addresses (within your /24 prefix)
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 91.200.19.x/24 /31 1200 yes 91.200.19.x/24 /30 1200 yes 91.200.19.x/24 /29 1200 yes 91.200.19.x/24 /28 1200 yes 91.200.19.x/24 /27 1200 yes 91.200.19.x/24 /26 1200 yes 91.200.19.x/24 /25 1200 yes 91.200.19.x/24 /24 1200 yes 91.200.18.x/24 /23 1200 no 91.200.17.x/24 /22 1200 no 91.200.23.x/24 /21 15439 no 91.200.27.x/24 /20 13000 no 91.200.3.x/24 /19 43744 no 91.200.51.x/24 /18 8315 no 91.200.83.x/24 /17 200557 no 91.200.147.x/24 /16 UNROUTED no 91.201.19.x/24 /15 57476 no 91.202.19.x/24 /14 44528 no 91.204.19.x/24 /13 47271 no 91.192.19.x/24 /12 UNROUTED no 91.216.19.x/24 /11 12670 no 91.232.19.x/24 /10 57217 no 91.136.19.x/24 /9 9115 no 91.72.19.x/24 /8 15802 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 no 2001:49aa:111:aa00::11 2001:388:1:5001:21c:c0ff:fea2:4a3a no fd11:1111:1111::1111 2001:388:1:5001:21c:c0ff:fea2:4a3a no 2001:4978:1fb:6400::d2 2001:410:102:1::78 no 2001:49aa:111:aa00::11 2001:410:102:1::78 no fd11:1111:1111::1111 2001:410:102:1::78 no 2001:4978:1fb:6400::d2 2001:410:90ff::5 no 2001:49aa:111:aa00::11 2001:410:90ff::5 no fd11:1111:1111::1111 2001:410:90ff::5 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 2001:4978:1fb: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 2001:4978:1fb: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 2001:4978:1fb: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 2001:4978:1fb:6400::d2 2001:708:40:2001:21c:c0ff:fea2:4c5c no 2001:49aa:111:aa00::11 2001:708:40:2001:21c:c0ff:fea2:4c5c no 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 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
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.Feedback:
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