Session Report
Summary:
Test run at: 2017-04-23 10:45:50 GMT
Client Prefix (v4): 103.237.145.x/24
Client AS (v4): 131414 (LVSOFT-AS-VN)
IPv4 Probes: 90
| Outbound spoofing summary (from the client to our server) |
|---|
| Source address type |
IPv4 |
|---|
| Private -
RFC1918 |
✔ | blocked |
| Routable |
received |
| 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 (103.237.145.x/24) can spoof 1023 neighboring addresses (within your /22 prefix)
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 103.237.145.x/24 | /31 | 131414 | yes |
| 103.237.145.x/24 | /30 | 131414 | yes |
| 103.237.145.x/24 | /29 | 131414 | yes |
| 103.237.145.x/24 | /28 | 131414 | yes |
| 103.237.145.x/24 | /27 | 131414 | yes |
| 103.237.145.x/24 | /26 | 131414 | yes |
| 103.237.145.x/24 | /25 | 131414 | yes |
| 103.237.145.x/24 | /24 | 131414 | yes |
| 103.237.144.x/24 | /23 | 131414 | yes |
| 103.237.147.x/24 | /22 | 131414 | yes |
| 103.237.149.x/24 | /21 | 45538 | no |
| 103.237.153.x/24 | /20 | UNROUTED | no |
| 103.237.129.x/24 | /19 | 24637 | no |
| 103.237.177.x/24 | /18 | UNROUTED | no |
| 103.237.209.x/24 | /17 | UNROUTED | no |
| 103.237.17.x/24 | /16 | UNROUTED | no |
| 103.236.145.x/24 | /15 | 59094 | no |
| 103.239.145.x/24 | /14 | 133269 | no |
| 103.233.145.x/24 | /13 | 23947 | no |
| 103.229.145.x/24 | /12 | 133448 | no |
| 103.253.145.x/24 | /11 | 133165 | no |
| 103.205.145.x/24 | /10 | 134852 | no |
| 103.173.145.x/24 | /9 | UNROUTED | no |
| 103.109.145.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
able to spoof routable, non-adjacent source addresses through the
first 14 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.
