Session Report
Summary:
Test run at: 2017-05-05 16:05:30 GMT
Client Prefix (v4): 185.93.71.x/24
Client AS (v4): 43260 (AS43260)
IPv4 Probes: 91
| Outbound spoofing summary (from the client to our server) |
|---|
| Source address type |
IPv4 |
|---|
| Private -
RFC1918 |
blocked |
| Routable |
received |
| Largest spoofable neighbor prefix length |
/9 |
| 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 (185.93.71.x/24) can spoof 8388607 neighboring addresses (within your /9 prefix)
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 185.93.71.x/24 | /31 | 43260 | yes |
| 185.93.71.x/24 | /30 | 43260 | yes |
| 185.93.71.x/24 | /29 | 43260 | yes |
| 185.93.71.x/24 | /28 | 43260 | yes |
| 185.93.71.x/24 | /27 | 43260 | yes |
| 185.93.71.x/24 | /26 | 43260 | yes |
| 185.93.71.x/24 | /25 | 43260 | yes |
| 185.93.71.x/24 | /24 | 43260 | yes |
| 185.93.70.x/24 | /23 | 43260 | yes |
| 185.93.69.x/24 | /22 | 43260 | yes |
| 185.93.67.x/24 | /21 | 204168 | yes |
| 185.93.79.x/24 | /20 | 57795 | yes |
| 185.93.87.x/24 | /19 | 35589 | no |
| 185.93.103.x/24 | /18 | 200855 | yes |
| 185.93.7.x/24 | /17 | 50618 | yes |
| 185.93.199.x/24 | /16 | 200852 | yes |
| 185.92.71.x/24 | /15 | 43350 | yes |
| 185.95.71.x/24 | /14 | 21155 | yes |
| 185.89.71.x/24 | /13 | 29152 | yes |
| 185.85.71.x/24 | /12 | 16235 | yes |
| 185.77.71.x/24 | /11 | 201344 | yes |
| 185.125.71.x/24 | /10 | UNROUTED | no |
| 185.29.71.x/24 | /9 | 199952 | yes |
| 185.221.71.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 |
| 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 18 IP hop(s).
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.
