Session Report
Summary:
Test run at: 2019-08-20 14:46:07 GMT
Client Prefix (v4): 188.93.234.x/24
Client AS (v4): 49349 (DOTSI)
IPv4 Probes: 96
| Outbound spoofing summary (from the client to our server) |
|---|
| Source address type |
IPv4 |
|---|
| Private -
RFC1918 |
✔ | blocked |
| Routable |
✔ | blocked |
| Largest spoofable neighbor prefix length |
/22 |
| 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 (188.93.234.x/24) can spoof 1023 neighboring addresses (within your /22 prefix)
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 188.93.234.x/24 | /31 | 49349 | yes |
| 188.93.234.x/24 | /30 | 49349 | yes |
| 188.93.234.x/24 | /29 | 49349 | yes |
| 188.93.234.x/24 | /28 | 49349 | yes |
| 188.93.234.x/24 | /27 | 49349 | yes |
| 188.93.234.x/24 | /26 | 49349 | yes |
| 188.93.234.x/24 | /25 | 49349 | yes |
| 188.93.234.x/24 | /24 | 49349 | yes |
| 188.93.235.x/24 | /23 | 49349 | no |
| 188.93.232.x/24 | /22 | 49349 | yes |
| 188.93.238.x/24 | /21 | 49349 | no |
| 188.93.226.x/24 | /20 | 8426 | no |
| 188.93.250.x/24 | /19 | UNROUTED | no |
| 188.93.202.x/24 | /18 | 12301 | no |
| 188.93.170.x/24 | /17 | UNROUTED | no |
| 188.93.106.x/24 | /16 | 206337 | no |
| 188.92.234.x/24 | /15 | 34555 | no |
| 188.95.234.x/24 | /14 | 56357 | no |
| 188.89.234.x/24 | /13 | 31615 | no |
| 188.85.234.x/24 | /12 | 12430 | no |
| 188.77.234.x/24 | /11 | 12479 | no |
| 188.125.234.x/24 | /10 | 35745 | no |
| 188.29.234.x/24 | /9 | 60339 | no |
| 188.221.234.x/24 | /8 | 5607 | 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
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:
We welcome questions and feedback to the Spoofer Information Mailing List
and invite users to join the Spoofer
Users Mailing List for discussion and announcements.
