Session Report
Summary:
Test run at: 2016-11-02 08:56:38 GMT
Client Prefix (v4): 62.140.137.x/24
Client AS (v4): 15480 (VFNL-AS)
IPv4 Probes: 104
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 (62.140.137.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
62.140.137.x/24 | /31 | 15480 | natblock |
62.140.137.x/24 | /30 | 15480 | natblock |
62.140.137.x/24 | /29 | 15480 | natblock |
62.140.137.x/24 | /28 | 15480 | natblock |
62.140.137.x/24 | /27 | 15480 | natblock |
62.140.137.x/24 | /26 | 15480 | natblock |
62.140.137.x/24 | /25 | 15480 | natblock |
62.140.137.x/24 | /24 | 15480 | natblock |
62.140.136.x/24 | /23 | 15480 | natblock |
62.140.139.x/24 | /22 | 15480 | natblock |
62.140.141.x/24 | /21 | 15480 | natblock |
62.140.129.x/24 | /20 | 15480 | natblock |
62.140.153.x/24 | /19 | UNROUTED | natblock |
62.140.169.x/24 | /18 | 28995 | natblock |
62.140.201.x/24 | /17 | 24867 | natblock |
62.140.9.x/24 | /16 | 3356 | natblock |
62.141.137.x/24 | /15 | 41164 | natblock |
62.142.137.x/24 | /14 | 790 | natblock |
62.136.137.x/24 | /13 | UNROUTED | natblock |
62.132.137.x/24 | /12 | 1136 | natblock |
62.156.137.x/24 | /11 | 3320 | natblock |
62.172.137.x/24 | /10 | 2856 | natblock |
62.204.137.x/24 | /9 | 8717 | natblock |
62.12.137.x/24 | /8 | 15623 | 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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