Session Report
Summary:
Test run at: 2018-03-31 20:40:32 GMT
Client Prefix (v4): 89.248.171.x/24
Client AS (v4): 29073
IPv4 Probes: 102
Outbound spoofing summary (from the client to our server) |
Source address type |
IPv4 |
Private -
RFC1918 |
blocked |
Routable |
✔ | blocked |
Largest spoofable neighbor prefix length |
/25 |
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 (89.248.171.x/24) can spoof 127 neighboring addresses (within your /25 prefix)
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
89.248.171.x/24 | /31 | 29073 | yes |
89.248.171.x/24 | /30 | 29073 | yes |
89.248.171.x/24 | /29 | 29073 | yes |
89.248.171.x/24 | /28 | 29073 | yes |
89.248.171.x/24 | /27 | 29073 | yes |
89.248.171.x/24 | /26 | 29073 | yes |
89.248.171.x/24 | /25 | 29073 | yes |
89.248.171.x/24 | /24 | 29073 | no |
89.248.170.x/24 | /23 | 29073 | no |
89.248.169.x/24 | /22 | 29073 | no |
89.248.175.x/24 | /21 | UNROUTED | no |
89.248.163.x/24 | /20 | 29073 | no |
89.248.187.x/24 | /19 | 34687 | no |
89.248.139.x/24 | /18 | 42517 | no |
89.248.235.x/24 | /17 | 34221 | no |
89.248.43.x/24 | /16 | 42346 | no |
89.249.171.x/24 | /15 | 2848 | no |
89.250.171.x/24 | /14 | 12389 | no |
89.252.171.x/24 | /13 | 51559 | no |
89.240.171.x/24 | /12 | 13285 | no |
89.232.171.x/24 | /11 | UNROUTED | no |
89.216.171.x/24 | /10 | 31042 | no |
89.184.171.x/24 | /9 | 39647 | no |
89.120.171.x/24 | /8 | 9050 | 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
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.
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