Session Report
Summary:
Test run at: 2017-01-23 19:40:16 GMT
Client Prefix (v4): 185.76.10.x/24
Client AS (v4): 60068 (CDN77)
IPv4 Probes: 104
| 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 (185.76.10.x/24) can spoof 31 neighboring addresses (within your /27 prefix)
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 185.76.10.x/24 | /31 | 60068 | yes |
| 185.76.10.x/24 | /30 | 60068 | yes |
| 185.76.10.x/24 | /29 | 60068 | yes |
| 185.76.10.x/24 | /28 | 60068 | yes |
| 185.76.10.x/24 | /27 | 60068 | yes |
| 185.76.10.x/24 | /26 | 60068 | no |
| 185.76.10.x/24 | /25 | 60068 | no |
| 185.76.10.x/24 | /24 | 60068 | no |
| 185.76.11.x/24 | /23 | UNROUTED | no |
| 185.76.8.x/24 | /22 | 29401 | no |
| 185.76.14.x/24 | /21 | 15936 | no |
| 185.76.2.x/24 | /20 | 198551 | no |
| 185.76.26.x/24 | /19 | UNROUTED | no |
| 185.76.42.x/24 | /18 | 20902 | no |
| 185.76.74.x/24 | /17 | 201391 | no |
| 185.76.138.x/24 | /16 | UNROUTED | no |
| 185.77.10.x/24 | /15 | 39046 | no |
| 185.78.10.x/24 | /14 | 59953 | no |
| 185.72.10.x/24 | /13 | 2118 | no |
| 185.68.10.x/24 | /12 | 201651 | no |
| 185.92.10.x/24 | /11 | 35690 | no |
| 185.108.10.x/24 | /10 | 15925 | no |
| 185.12.10.x/24 | /9 | 199450 | no |
| 185.204.10.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
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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and invite users to join the Spoofer
Users Mailing List for discussion and announcements.
