Session Report
Summary:
Test run at: 2017-09-06 12:58:28 GMT
Client Prefix (v4): 119.59.113.x/24
Client AS (v4): 56067 (METRABYTE-TH)
IPv4 Probes: 117
| Outbound spoofing summary (from the client to our server) |
|---|
| Source address type |
IPv4 |
|---|
| Private -
RFC1918 |
blocked |
| Routable |
blocked |
| Largest spoofable neighbor prefix length |
/19 |
| 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 (119.59.113.x/24) can spoof 8191 neighboring addresses (within your /19 prefix)
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 119.59.113.x/24 | /31 | 56067 | yes |
| 119.59.113.x/24 | /30 | 56067 | yes |
| 119.59.113.x/24 | /29 | 56067 | yes |
| 119.59.113.x/24 | /28 | 56067 | yes |
| 119.59.113.x/24 | /27 | 56067 | yes |
| 119.59.113.x/24 | /26 | 56067 | yes |
| 119.59.113.x/24 | /25 | 56067 | yes |
| 119.59.113.x/24 | /24 | 56067 | yes |
| 119.59.112.x/24 | /23 | 56067 | yes |
| 119.59.115.x/24 | /22 | 56067 | yes |
| 119.59.117.x/24 | /21 | 56067 | yes |
| 119.59.121.x/24 | /20 | 56067 | yes |
| 119.59.97.x/24 | /19 | 56067 | yes |
| 119.59.81.x/24 | /18 | 38742 | no |
| 119.59.49.x/24 | /17 | UNROUTED | no |
| 119.59.241.x/24 | /16 | UNROUTED | no |
| 119.58.113.x/24 | /15 | UNROUTED | no |
| 119.57.113.x/24 | /14 | 63691 | no |
| 119.63.113.x/24 | /13 | 9615 | no |
| 119.51.113.x/24 | /12 | 4837 | no |
| 119.43.113.x/24 | /11 | UNROUTED | no |
| 119.27.113.x/24 | /10 | 4837 | no |
| 119.123.113.x/24 | /9 | 4134 | no |
| 119.187.113.x/24 | /8 | 4837 | 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:
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.
