Session Report
Test run at: 2017-07-10 17:36:57 GMTIPv4 AS Route:
Client Prefix (v4): 194.228.20.x/24
Client AS (v4): 5610 (O2-CZECH-REPUBLIC)
IPv4 Probes: 117
Client Prefix (v6): 2a00:1028:83xx::/40
Client AS (v6): 5610 (O2-CZECH-REPUBLIC)
IPv6 Probes: 77
Outbound spoofing summary (from the client to our server) Source address type IPv4 IPv6 Private - RFC1918 or ULA unknown blocked Routable unknown blocked Largest spoofable neighbor prefix length none /64
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.
This test run probed the following paths in order to infer your ability to send different spoofed source packets. Each node in the graph corresponds to an autonomous system, i.e. different Internet service providers. NOTE: This graph does NOT show if an AS blocks spoofed packets, only the path taken by received spoofed packets. The IP Path Details are available for this run. If non-spoofed packets weren't received at a destination, the traceroute to that destination is not included in this graph and may even cause a totally empty graph.
IPv4 Adjacent Netblock Testing:
Your host (194.228.20.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 194.228.20.x/24 /31 5610 sendto 194.228.20.x/24 /30 5610 sendto 194.228.20.x/24 /29 5610 sendto 194.228.20.x/24 /28 5610 sendto 194.228.20.x/24 /27 5610 sendto 194.228.20.x/24 /26 5610 sendto 194.228.20.x/24 /25 5610 sendto 194.228.20.x/24 /24 5610 sendto 194.228.21.x/24 /23 5610 sendto 194.228.22.x/24 /22 5610 sendto 194.228.16.x/24 /21 5610 sendto 194.228.28.x/24 /20 5610 sendto 194.228.4.x/24 /19 5610 sendto 194.228.52.x/24 /18 5610 sendto 194.228.84.x/24 /17 5610 sendto 194.228.148.x/24 /16 5610 sendto 194.229.20.x/24 /15 702 sendto 194.230.20.x/24 /14 6730 sendto 194.224.20.x/24 /13 3352 sendto 194.236.20.x/24 /12 3301 sendto 194.244.20.x/24 /11 3302 sendto 194.196.20.x/24 /10 2686 sendto 194.164.20.x/24 /9 8897 sendto 194.100.20.x/24 /8 16086 sendto Meaning of status in Received column:
sendto The spoofer client was unable to send spoofed headers due to an operating system restriction.
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 2001:4978:1fb: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
Summary:
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 2a00:1028:83xx::/40 /120 5610 yes 2a00:1028:83xx::/40 /112 5610 yes 2a00:1028:83xx::/40 /104 5610 yes 2a00:1028:83xx::/40 /96 5610 yes 2a00:1028:83xx::/40 /88 5610 yes 2a00:1028:83xx::/40 /80 5610 yes 2a00:1028:83xx::/40 /72 5610 yes 2a00:1028:83xx::/40 /64 5610 yes 2a00:1028:83xx::/40 /56 5610 no 2a00:1028:83xx::/40 /48 5610 no 2a00:1028:83xx::/40 /40 5610 no 2a00:1028:3xx::/40 /32 5610 no 2a00:10a8:83xx::/40 /24 39596 no 2a00:9028:83xx::/40 /16 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)
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.Feedback:
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