Session Report
Summary:
Test run at: 2020-10-06 20:40:28 GMT
Client Prefix (v4): 45.15.18.x/24
Client AS (v4): 1299 (TWELVE99)
IPv4 Probes: 75
Client Prefix (v6): 2a0e:1c80:xx::/40
Client AS (v6): 1299 (TWELVE99)
IPv6 Probes: 68
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 |
none | 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 (45.15.18.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
45.15.18.x/24 | /31 | 1299 | natblock |
45.15.18.x/24 | /30 | 1299 | natblock |
45.15.18.x/24 | /29 | 1299 | natblock |
45.15.18.x/24 | /28 | 1299 | natblock |
45.15.18.x/24 | /27 | 1299 | natblock |
45.15.18.x/24 | /26 | 1299 | natblock |
45.15.18.x/24 | /25 | 1299 | natblock |
45.15.18.x/24 | /24 | 1299 | natblock |
45.15.19.x/24 | /23 | 50304 | natblock |
45.15.16.x/24 | /22 | 197595 | natblock |
45.15.22.x/24 | /21 | 203523 | natblock |
45.15.26.x/24 | /20 | 47583 | natblock |
45.15.2.x/24 | /19 | 208928 | natblock |
45.15.50.x/24 | /18 | 12357 | natblock |
45.15.82.x/24 | /17 | 28875 | natblock |
45.15.146.x/24 | /16 | 35913 | natblock |
45.14.18.x/24 | /15 | 48711 | natblock |
45.13.18.x/24 | /14 | 208946 | natblock |
45.11.18.x/24 | /13 | 30823 | natblock |
45.7.18.x/24 | /12 | 266560 | natblock |
45.31.18.x/24 | /11 | 7018 | natblock |
45.47.18.x/24 | /10 | 11351 | natblock |
45.79.18.x/24 | /9 | 63949 | natblock |
45.143.18.x/24 | /8 | 204053 | natblock |
Meaning of status in Received column:
natblock | Spoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address. |
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
|
---|
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
2a0e:1c80:xx::/40 | /120 | 1299 | natblock |
2a0e:1c80:xx::/40 | /112 | 1299 | natblock |
2a0e:1c80:xx::/40 | /104 | 1299 | natblock |
2a0e:1c80:xx::/40 | /96 | 1299 | natblock |
2a0e:1c80:xx::/40 | /88 | 1299 | natblock |
2a0e:1c80:xx::/40 | /80 | 1299 | natblock |
2a0e:1c80:xx::/40 | /72 | 1299 | natblock |
2a0e:1c80:xx::/40 | /64 | 1299 | natblock |
2a0e:1c80:xx::/40 | /56 | 1299 | natblock |
2a0e:1c80:xx::/40 | /48 | 1299 | natblock |
2a0e:1c80:xx::/40 | /40 | UNROUTED | natblock |
2a0e:1c80:80xx::/40 | /32 | UNROUTED | natblock |
2a0e:1c00:xx::/40 | /24 | 61317 | natblock |
2a0e:9c80:xx::/40 | /16 | UNROUTED | natblock |
Meaning of status in Received column:
natblock | Spoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address. |
Summary:
The results from all tests are aggregated to produce a summary
"State of IP Spoofing" report.
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