Session Report
Summary:
Test run at: 2018-06-21 06:26:20 GMT
Client Prefix (v4): 185.244.25.x/24
Client AS (v4): 205406 (Access2IT-SECONDARY)
IPv4 Probes: 99
| Outbound spoofing summary (from the client to our server) |
|---|
| Source address type |
IPv4 |
|---|
| Private -
RFC1918 |
✔ | received |
| Routable |
✔ | received |
| Largest spoofable neighbor prefix length |
/8 |
| 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 (185.244.25.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 185.244.25.x/24 | /31 | 205406 | yes |
| 185.244.25.x/24 | /30 | 205406 | yes |
| 185.244.25.x/24 | /29 | 205406 | yes |
| 185.244.25.x/24 | /28 | 205406 | yes |
| 185.244.25.x/24 | /27 | 205406 | yes |
| 185.244.25.x/24 | /26 | 205406 | yes |
| 185.244.25.x/24 | /25 | 205406 | yes |
| 185.244.25.x/24 | /24 | 205406 | yes |
| 185.244.24.x/24 | /23 | UNROUTED | no |
| 185.244.27.x/24 | /22 | 205406 | yes |
| 185.244.29.x/24 | /21 | 205406 | yes |
| 185.244.17.x/24 | /20 | UNROUTED | no |
| 185.244.9.x/24 | /19 | 13213 | yes |
| 185.244.57.x/24 | /18 | 13157 | yes |
| 185.244.89.x/24 | /17 | 9009 | yes |
| 185.244.153.x/24 | /16 | UNROUTED | no |
| 185.245.25.x/24 | /15 | UNROUTED | no |
| 185.246.25.x/24 | /14 | UNROUTED | no |
| 185.240.25.x/24 | /13 | 204790 | yes |
| 185.252.25.x/24 | /12 | UNROUTED | no |
| 185.228.25.x/24 | /11 | UNROUTED | no |
| 185.212.25.x/24 | /10 | 200701 | yes |
| 185.180.25.x/24 | /9 | 44974 | yes |
| 185.116.25.x/24 | /8 | 203798 | yes |
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 10 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.
