Session Report
Summary:
Test run at: 2020-08-25 00:12:46 GMT
Client Prefix (v4): 185.99.135.x/24
Client AS (v4): 36351 (SOFTLAYER)
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 (185.99.135.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
185.99.135.x/24 | /31 | 36351 | natblock |
185.99.135.x/24 | /30 | 36351 | natblock |
185.99.135.x/24 | /29 | 36351 | natblock |
185.99.135.x/24 | /28 | 36351 | natblock |
185.99.135.x/24 | /27 | 36351 | natblock |
185.99.135.x/24 | /26 | 36351 | natblock |
185.99.135.x/24 | /25 | 36351 | natblock |
185.99.135.x/24 | /24 | 36351 | natblock |
185.99.134.x/24 | /23 | 133448 | natblock |
185.99.133.x/24 | /22 | 61138 | natblock |
185.99.131.x/24 | /21 | 207257 | natblock |
185.99.143.x/24 | /20 | UNROUTED | natblock |
185.99.151.x/24 | /19 | 39605 | natblock |
185.99.167.x/24 | /18 | 62163 | natblock |
185.99.199.x/24 | /17 | 42807 | natblock |
185.99.7.x/24 | /16 | 47282 | natblock |
185.98.135.x/24 | /15 | 200744 | natblock |
185.97.135.x/24 | /14 | 60268 | natblock |
185.103.135.x/24 | /13 | 57191 | natblock |
185.107.135.x/24 | /12 | UNROUTED | natblock |
185.115.135.x/24 | /11 | 41606 | natblock |
185.67.135.x/24 | /10 | 39906 | natblock |
185.35.135.x/24 | /9 | 201341 | natblock |
185.227.135.x/24 | /8 | 18530 | 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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