Session Report
Summary:
Test run at: 2017-12-28 17:43:27 GMT
Client Prefix (v4): 47.218.253.x/24
Client AS (v4): 19108 (SUDDENLINK-COMMUNICATIONS)
IPv4 Probes: 102
| Outbound spoofing summary (from the client to our server) |
|---|
| Source address type |
IPv4 |
|---|
| Private -
RFC1918 |
blocked |
| Routable |
unknown |
| 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 (47.218.253.x/24) can spoof 0 neighboring addresses
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 47.218.253.x/24 | /31 | 19108 | sendto |
| 47.218.253.x/24 | /30 | 19108 | sendto |
| 47.218.253.x/24 | /29 | 19108 | sendto |
| 47.218.253.x/24 | /28 | 19108 | sendto |
| 47.218.253.x/24 | /27 | 19108 | sendto |
| 47.218.253.x/24 | /26 | 19108 | sendto |
| 47.218.253.x/24 | /25 | 19108 | sendto |
| 47.218.253.x/24 | /24 | 19108 | sendto |
| 47.218.252.x/24 | /23 | 19108 | sendto |
| 47.218.255.x/24 | /22 | 19108 | sendto |
| 47.218.249.x/24 | /21 | 19108 | sendto |
| 47.218.245.x/24 | /20 | 19108 | sendto |
| 47.218.237.x/24 | /19 | 19108 | sendto |
| 47.218.221.x/24 | /18 | 19108 | sendto |
| 47.218.189.x/24 | /17 | 19108 | natblock |
| 47.218.125.x/24 | /16 | 19108 | sendto |
| 47.219.253.x/24 | /15 | 19108 | sendto |
| 47.216.253.x/24 | /14 | 19108 | sendto |
| 47.222.253.x/24 | /13 | 19108 | sendto |
| 47.210.253.x/24 | /12 | 19108 | natblock |
| 47.202.253.x/24 | /11 | 5650 | sendto |
| 47.250.253.x/24 | /10 | UNROUTED | sendto |
| 47.154.253.x/24 | /9 | 5650 | natblock |
| 47.90.253.x/24 | /8 | 45102 | 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. |
| sendto | The spoofer client was unable to send spoofed headers due to an operating system restriction. |
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.
