Session Report
Summary:
Test run at: 2020-10-08 23:02:14 GMT
Client Prefix (v4): 109.248.148.x/24
Client AS (v4): 52048 (DATACLUB)
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 (109.248.148.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
109.248.148.x/24 | /31 | 52048 | natblock |
109.248.148.x/24 | /30 | 52048 | natblock |
109.248.148.x/24 | /29 | 52048 | natblock |
109.248.148.x/24 | /28 | 52048 | natblock |
109.248.148.x/24 | /27 | 52048 | natblock |
109.248.148.x/24 | /26 | 52048 | natblock |
109.248.148.x/24 | /25 | 52048 | natblock |
109.248.148.x/24 | /24 | 52048 | natblock |
109.248.149.x/24 | /23 | 52048 | natblock |
109.248.150.x/24 | /22 | 203557 | natblock |
109.248.144.x/24 | /21 | 60567 | natblock |
109.248.156.x/24 | /20 | 8200 | natblock |
109.248.132.x/24 | /19 | 209546 | natblock |
109.248.180.x/24 | /18 | 15868 | natblock |
109.248.212.x/24 | /17 | 200466 | natblock |
109.248.20.x/24 | /16 | UNROUTED | natblock |
109.249.148.x/24 | /15 | 12576 | natblock |
109.250.148.x/24 | /14 | 8881 | natblock |
109.252.148.x/24 | /13 | 25513 | natblock |
109.240.148.x/24 | /12 | 1759 | natblock |
109.232.148.x/24 | /11 | 196684 | natblock |
109.216.148.x/24 | /10 | 3215 | natblock |
109.184.148.x/24 | /9 | 12389 | natblock |
109.120.148.x/24 | /8 | 30968 | 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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