Session Report
Test run at: 2020-09-16 17:14:07 GMT
Client Prefix (v4): 195.245.239.x/24
Client AS (v4): 49392 (ASBAXETN)
IPv4 Probes: 75
Client Prefix (v6): 2a00:b700:xx::/40
Client AS (v6): 49392 (ASBAXETN)
IPv6 Probes: 68
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 /24 /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 (195.245.239.x/24) can spoof 255 neighboring addresses (within your /24 prefix)
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 195.245.239.x/24 /31 49392 yes 195.245.239.x/24 /30 49392 yes 195.245.239.x/24 /29 49392 yes 195.245.239.x/24 /28 49392 yes 195.245.239.x/24 /27 49392 yes 195.245.239.x/24 /26 49392 yes 195.245.239.x/24 /25 49392 yes 195.245.239.x/24 /24 49392 yes 195.245.238.x/24 /23 48989 no 195.245.237.x/24 /22 25598 no 195.245.235.x/24 /21 205934 no 195.245.231.x/24 /20 UNROUTED no 195.245.255.x/24 /19 28766 no 195.245.207.x/24 /18 UNROUTED no 195.245.175.x/24 /17 9186 no 195.245.111.x/24 /16 62240 no 195.244.239.x/24 /15 199273 no 195.247.239.x/24 /14 12312 no 195.241.239.x/24 /13 1136 no 195.253.239.x/24 /12 8391 no 195.229.239.x/24 /11 5384 no 195.213.239.x/24 /10 6871 no 195.181.239.x/24 /9 206815 no 195.117.239.x/24 /8 5617 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:
IPv6 Adjacent Netblock Testing:
Spoofed source address Destination Received 2001:48d0:101:501::159 2001:48d0:101:501::242 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 2001:48d0:101:501::159 2001:48d0:101:501::247 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 2001:48d0:101:501::159 2001:610:510:115:192:42:115:98 yes 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 2001:48d0:101:501::159 2001:630:212:225:225:90ff:fe0c:45a6 yes 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 2001:48d0:101:501::159 2001:770:18:7:225:90ff:fe0c:acb4 yes 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 2001:48d0:101:501::159 2001:df0:4:800:21c:c0ff:feb2:ad5f yes 2001:4978:1fb:6400::d2 2001:df0:4:800:21c:c0ff:feb2:ad5f no 2001:49aa:111:aa00::11 2001:df0:4:800:21c:c0ff:feb2:ad5f no fd11:1111:1111::1111 2001:df0:4:800:21c:c0ff:feb2:ad5f no
Summary:
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 2a00:b700:xx::/40 /120 49392 yes 2a00:b700:xx::/40 /112 49392 yes 2a00:b700:xx::/40 /104 49392 yes 2a00:b700:xx::/40 /96 49392 yes 2a00:b700:xx::/40 /88 49392 yes 2a00:b700:xx::/40 /80 49392 yes 2a00:b700:xx::/40 /72 49392 yes 2a00:b700:xx::/40 /64 49392 yes 2a00:b700:xx::/40 /56 49392 yes 2a00:b700:xx::/40 /48 49392 yes 2a00:b700:xx::/40 /40 UNROUTED yes 2a00:b700:80xx::/40 /32 UNROUTED yes 2a00:b780:xx::/40 /24 UNROUTED yes 2a00:3700:xx::/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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