Session Report
Summary:
Test run at: 2020-08-23 19:50:24 GMT
Client Prefix (v4): 85.31.101.x/24
Client AS (v4): 43513 (NANO-AS)
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server) |
Source address type |
IPv4 |
Private -
RFC1918 |
blocked |
Routable |
blocked |
Largest spoofable neighbor prefix length |
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 (85.31.101.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
85.31.101.x/24 | /31 | 43513 | natblock |
85.31.101.x/24 | /30 | 43513 | natblock |
85.31.101.x/24 | /29 | 43513 | natblock |
85.31.101.x/24 | /28 | 43513 | natblock |
85.31.101.x/24 | /27 | 43513 | natblock |
85.31.101.x/24 | /26 | 43513 | natblock |
85.31.101.x/24 | /25 | 43513 | natblock |
85.31.101.x/24 | /24 | 43513 | natblock |
85.31.100.x/24 | /23 | 43513 | natblock |
85.31.103.x/24 | /22 | 43513 | natblock |
85.31.97.x/24 | /21 | 43513 | natblock |
85.31.109.x/24 | /20 | 35283 | natblock |
85.31.117.x/24 | /19 | 15672 | natblock |
85.31.69.x/24 | /18 | 42705 | natblock |
85.31.37.x/24 | /17 | 42498 | natblock |
85.31.229.x/24 | /16 | 41314 | natblock |
85.30.101.x/24 | /15 | 16333 | natblock |
85.29.101.x/24 | /14 | 13170 | natblock |
85.27.101.x/24 | /13 | 12392 | natblock |
85.23.101.x/24 | /12 | 16086 | natblock |
85.15.101.x/24 | /11 | 34896 | natblock |
85.63.101.x/24 | /10 | 12479 | natblock |
85.95.101.x/24 | /9 | 21267 | natblock |
85.159.101.x/24 | /8 | 24595 | 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.
Summary:
The results from all tests are aggregated to produce a summary
"State of IP Spoofing" report.
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