Session Report
Summary:
Test run at: 2020-09-06 14:31:00 GMT
Client Prefix (v4): 179.48.249.x/24
Client AS (v4): 52423
IPv4 Probes: 75
| Outbound spoofing summary (from the client to our server) |
|---|
| Source address type |
IPv4 |
|---|
| Private -
RFC1918 |
blocked |
| Routable |
blocked |
| Largest spoofable neighbor prefix length |
none |
| 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 (179.48.249.x/24) can spoof 0 neighboring addresses
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 179.48.249.x/24 | /31 | 52423 | natblock |
| 179.48.249.x/24 | /30 | 52423 | natblock |
| 179.48.249.x/24 | /29 | 52423 | natblock |
| 179.48.249.x/24 | /28 | 52423 | natblock |
| 179.48.249.x/24 | /27 | 52423 | natblock |
| 179.48.249.x/24 | /26 | 52423 | natblock |
| 179.48.249.x/24 | /25 | 52423 | natblock |
| 179.48.249.x/24 | /24 | 52423 | natblock |
| 179.48.248.x/24 | /23 | 52423 | natblock |
| 179.48.251.x/24 | /22 | 52423 | natblock |
| 179.48.253.x/24 | /21 | 264856 | natblock |
| 179.48.241.x/24 | /20 | 271060 | natblock |
| 179.48.233.x/24 | /19 | 271058 | natblock |
| 179.48.217.x/24 | /18 | 271101 | natblock |
| 179.48.185.x/24 | /17 | UNROUTED | natblock |
| 179.48.121.x/24 | /16 | 271087 | natblock |
| 179.49.249.x/24 | /15 | 271221 | natblock |
| 179.50.249.x/24 | /14 | 52228 | natblock |
| 179.52.249.x/24 | /13 | 6400 | natblock |
| 179.56.249.x/24 | /12 | 14117 | natblock |
| 179.32.249.x/24 | /11 | 3816 | natblock |
| 179.16.249.x/24 | /10 | 26615 | natblock |
| 179.112.249.x/24 | /9 | 26599 | natblock |
| 179.176.249.x/24 | /8 | 18881 | natblock |
Meaning of status in Received column:
| natblock | Spoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address. |
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:
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.
