Session Report
Summary:
Test run at: 2020-06-17 00:45:36 GMT
Client Prefix (v4): 201.131.125.x/24
Client AS (v4): 33182 (DIMENOC)
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 (201.131.125.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
201.131.125.x/24 | /31 | 33182 | natblock |
201.131.125.x/24 | /30 | 33182 | natblock |
201.131.125.x/24 | /29 | 33182 | natblock |
201.131.125.x/24 | /28 | 33182 | natblock |
201.131.125.x/24 | /27 | 33182 | natblock |
201.131.125.x/24 | /26 | 33182 | natblock |
201.131.125.x/24 | /25 | 33182 | natblock |
201.131.125.x/24 | /24 | 33182 | natblock |
201.131.124.x/24 | /23 | 33182 | natblock |
201.131.127.x/24 | /22 | 33182 | natblock |
201.131.121.x/24 | /21 | 21575 | natblock |
201.131.117.x/24 | /20 | 28374 | natblock |
201.131.109.x/24 | /19 | 28372 | natblock |
201.131.93.x/24 | /18 | 61944 | natblock |
201.131.61.x/24 | /17 | 262927 | natblock |
201.131.253.x/24 | /16 | 397215 | natblock |
201.130.125.x/24 | /15 | 8151 | natblock |
201.129.125.x/24 | /14 | UNROUTED | natblock |
201.135.125.x/24 | /13 | UNROUTED | natblock |
201.139.125.x/24 | /12 | 263114 | natblock |
201.147.125.x/24 | /11 | 8151 | natblock |
201.163.125.x/24 | /10 | 11172 | natblock |
201.195.125.x/24 | /9 | 11830 | natblock |
201.3.125.x/24 | /8 | 8167 | 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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