Session Report
Summary:
Test run at: 2020-10-11 08:06:18 GMT
Client Prefix (v4): 146.71.76.x/24
Client AS (v4): 47869 (NETROUTING-AS)
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 (146.71.76.x/24) can spoof 0 neighboring addresses
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 146.71.76.x/24 | /31 | 47869 | no |
| 146.71.76.x/24 | /30 | 47869 | no |
| 146.71.76.x/24 | /29 | 47869 | no |
| 146.71.76.x/24 | /28 | 47869 | no |
| 146.71.76.x/24 | /27 | 47869 | no |
| 146.71.76.x/24 | /26 | 47869 | no |
| 146.71.76.x/24 | /25 | 47869 | no |
| 146.71.76.x/24 | /24 | 47869 | no |
| 146.71.77.x/24 | /23 | 8100 | no |
| 146.71.78.x/24 | /22 | 46562 | no |
| 146.71.72.x/24 | /21 | 394109 | no |
| 146.71.68.x/24 | /20 | 396006 | no |
| 146.71.92.x/24 | /19 | 395768 | no |
| 146.71.108.x/24 | /18 | 53850 | no |
| 146.71.12.x/24 | /17 | 1403 | no |
| 146.71.204.x/24 | /16 | UNROUTED | no |
| 146.70.76.x/24 | /15 | UNROUTED | no |
| 146.69.76.x/24 | /14 | UNROUTED | no |
| 146.67.76.x/24 | /13 | 8803 | no |
| 146.79.76.x/24 | /12 | 15307 | no |
| 146.87.76.x/24 | /11 | 786 | no |
| 146.103.76.x/24 | /10 | 2611 | no |
| 146.7.76.x/24 | /9 | 2572 | no |
| 146.199.76.x/24 | /8 | 6871 | no |
Meaning of status in Received column:
| no | Packets spoofed from adjacent netblock were not received, probably due to blocking |
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.
Feedback:
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Users Mailing List for discussion and announcements.
