Session Report
Summary:
Test run at: 2023-10-16 04:16:14 GMT
Client Prefix (v4): 95.168.168.x/24
Client AS (v4): 60781 (LEASEWEB-NL-AMS-01)
IPv4 Probes: 69
| Outbound spoofing summary (from the client to our server) |
|---|
| Source address type |
IPv4 |
|---|
| Private -
RFC1918 |
blocked |
| Routable |
blocked |
| Largest spoofable neighbor prefix length |
/26 |
| 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 (95.168.168.x/24) can spoof 63 neighboring addresses (within your /26 prefix)
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 95.168.168.x/24 | /31 | 60781 | yes |
| 95.168.168.x/24 | /30 | 60781 | yes |
| 95.168.168.x/24 | /29 | 60781 | yes |
| 95.168.168.x/24 | /28 | 60781 | yes |
| 95.168.168.x/24 | /27 | 60781 | yes |
| 95.168.168.x/24 | /26 | 60781 | yes |
| 95.168.168.x/24 | /25 | 60781 | no |
| 95.168.168.x/24 | /24 | 60781 | no |
| 95.168.169.x/24 | /23 | 60781 | no |
| 95.168.170.x/24 | /22 | 60781 | no |
| 95.168.172.x/24 | /21 | 60781 | no |
| 95.168.160.x/24 | /20 | 60781 | no |
| 95.168.184.x/24 | /19 | 205544 | no |
| 95.168.136.x/24 | /18 | 16202 | no |
| 95.168.232.x/24 | /17 | 12829 | no |
| 95.168.40.x/24 | /16 | 8462 | no |
| 95.169.168.x/24 | /15 | UNROUTED | no |
| 95.170.168.x/24 | /14 | 39785 | no |
| 95.172.168.x/24 | /13 | 15457 | no |
| 95.160.168.x/24 | /12 | 29314 | no |
| 95.184.168.x/24 | /11 | 25019 | no |
| 95.136.168.x/24 | /10 | 34383 | no |
| 95.232.168.x/24 | /9 | 3269 | no |
| 95.40.168.x/24 | /8 | 8374 | 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.
Feedback:
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and invite users to join the Spoofer
Users Mailing List for discussion and announcements.
