Test run at: 2017-02-21 22:00:07 GMTIPv4 AS Route:
Client Prefix (v4): 216.127.117.x/24
Client AS (v4): 21879 (TWRS-SF)
IPv4 Probes: 90
Client Prefix (v6): 2001:559:xx::/40
Client AS (v6): 7922 (COMCAST-7922)
IPv6 Probes: 63
Outbound spoofing summary (from the client to our server) Source address type IPv4 IPv6 Private - RFC1918 or ULA unknown ✔ received Routable unknown ✔ received Largest spoofable neighbor prefix length none none
Meaning of result status in column:
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 (216.127.117.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) Prefix
ASN of spoofed
Received 216.127.117.x/24 /31 21879 sendto 216.127.117.x/24 /30 21879 sendto 216.127.117.x/24 /29 21879 sendto 216.127.117.x/24 /28 21879 sendto 216.127.117.x/24 /27 21879 sendto 216.127.117.x/24 /26 21879 sendto 216.127.117.x/24 /25 21879 sendto 216.127.117.x/24 /24 21879 sendto 216.127.116.x/24 /23 21879 sendto 216.127.119.x/24 /22 UNROUTED sendto 216.127.113.x/24 /21 7221 sendto 216.127.125.x/24 /20 33224 sendto 216.127.101.x/24 /19 54127 sendto 216.127.85.x/24 /18 36351 sendto 216.127.53.x/24 /17 11608 sendto 216.127.245.x/24 /16 3356 sendto 216.126.117.x/24 /15 UNROUTED sendto 216.125.117.x/24 /14 6325 sendto 216.123.117.x/24 /13 15290 sendto 216.119.117.x/24 /12 14992 sendto 216.111.117.x/24 /11 26840 sendto 216.95.117.x/24 /10 701 sendto 216.63.117.x/24 /9 7018 sendto 216.255.117.x/24 /8 6128 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:
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 no
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.Feedback:
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