Session Report
Summary:
Test run at: 2021-08-08 20:14:40 GMT
Client Prefix (v4): 51.79.186.x/24
Client AS (v4): 16276 (OVH)
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server) |
Source address type |
IPv4 |
Private -
RFC1918 |
blocked |
Routable |
blocked |
Largest spoofable neighbor prefix length |
/27 |
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 (51.79.186.x/24) can spoof 31 neighboring addresses (within your /27 prefix)
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
51.79.186.x/24 | /31 | 16276 | yes |
51.79.186.x/24 | /30 | 16276 | yes |
51.79.186.x/24 | /29 | 16276 | no |
51.79.186.x/24 | /28 | 16276 | yes |
51.79.186.x/24 | /27 | 16276 | yes |
51.79.186.x/24 | /26 | 16276 | no |
51.79.186.x/24 | /25 | 16276 | no |
51.79.186.x/24 | /24 | 16276 | no |
51.79.187.x/24 | /23 | 16276 | no |
51.79.184.x/24 | /22 | 16276 | no |
51.79.190.x/24 | /21 | 16276 | no |
51.79.178.x/24 | /20 | 16276 | no |
51.79.170.x/24 | /19 | 16276 | no |
51.79.154.x/24 | /18 | 16276 | no |
51.79.250.x/24 | /17 | 16276 | no |
51.79.58.x/24 | /16 | 16276 | no |
51.78.186.x/24 | /15 | UNROUTED | no |
51.77.186.x/24 | /14 | 16276 | no |
51.75.186.x/24 | /13 | 16276 | no |
51.71.186.x/24 | /12 | UNROUTED | no |
51.95.186.x/24 | /11 | UNROUTED | no |
51.111.186.x/24 | /10 | UNROUTED | no |
51.15.186.x/24 | /9 | 12876 | no |
51.207.186.x/24 | /8 | UNROUTED | no |
Meaning of status in Received column:
no | Packets spoofed from adjacent netblock were not received, probably due to blocking |
yes | Packets spoofed from adjacent netblock were received (but that netblock is within the source AS) |
IPv4 Outbound Filtering Depth:
The tracefilter test found your host
able to spoof routable, non-adjacent source addresses through the
first 1 IP hop(s).
Summary:
The results from all tests are aggregated to produce a summary
"State of IP Spoofing" report.
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