Session Report
Summary:
Test run at: 2019-12-26 11:30:19 GMT
Client Prefix (v4): 128.14.180.x/24
Client AS (v4): 21859 (ZEN-ECN)
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server) |
Source address type |
IPv4 |
Private -
RFC1918 |
blocked |
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 (128.14.180.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
128.14.180.x/24 | /31 | 21859 | yes |
128.14.180.x/24 | /30 | 21859 | yes |
128.14.180.x/24 | /29 | 21859 | yes |
128.14.180.x/24 | /28 | 21859 | yes |
128.14.180.x/24 | /27 | 21859 | yes |
128.14.180.x/24 | /26 | 21859 | yes |
128.14.180.x/24 | /25 | 21859 | yes |
128.14.180.x/24 | /24 | 21859 | yes |
128.14.181.x/24 | /23 | 21859 | yes |
128.14.182.x/24 | /22 | 21859 | yes |
128.14.176.x/24 | /21 | 21859 | yes |
128.14.188.x/24 | /20 | 21859 | yes |
128.14.164.x/24 | /19 | 21859 | yes |
128.14.148.x/24 | /18 | 21859 | yes |
128.14.244.x/24 | /17 | 21859 | yes |
128.14.52.x/24 | /16 | 21859 | yes |
128.15.180.x/24 | /15 | 45 | yes |
128.12.180.x/24 | /14 | 32 | yes |
128.10.180.x/24 | /13 | 17 | yes |
128.6.180.x/24 | /12 | 46 | yes |
128.30.180.x/24 | /11 | 3 | yes |
128.46.180.x/24 | /10 | 17 | yes |
128.78.180.x/24 | /9 | 5410 | yes |
128.142.180.x/24 | /8 | 513 | yes |
Meaning of status in Received column:
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.
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