Session Report
Summary:
Test run at: 2017-07-25 08:32:21 GMT
Client Prefix (v4): 185.105.4.x/24
Client AS (v4): 19624 (SERVERROOM)
IPv4 Probes: 117
Outbound spoofing summary (from the client to our server) |
Source address type |
IPv4 |
Private -
RFC1918 |
blocked |
Routable |
✔ | received |
Largest spoofable neighbor prefix length |
/9 |
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 (185.105.4.x/24) can spoof 8388607 neighboring addresses (within your /9 prefix)
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
185.105.4.x/24 | /31 | 19624 | yes |
185.105.4.x/24 | /30 | 19624 | yes |
185.105.4.x/24 | /29 | 19624 | yes |
185.105.4.x/24 | /28 | 19624 | yes |
185.105.4.x/24 | /27 | 19624 | yes |
185.105.4.x/24 | /26 | 19624 | yes |
185.105.4.x/24 | /25 | 19624 | yes |
185.105.4.x/24 | /24 | 19624 | yes |
185.105.5.x/24 | /23 | 19624 | yes |
185.105.6.x/24 | /22 | 19624 | yes |
185.105.0.x/24 | /21 | UNROUTED | no |
185.105.12.x/24 | /20 | 201942 | yes |
185.105.20.x/24 | /19 | 24792 | yes |
185.105.36.x/24 | /18 | UNROUTED | no |
185.105.68.x/24 | /17 | UNROUTED | no |
185.105.132.x/24 | /16 | 3303 | yes |
185.104.4.x/24 | /15 | 25591 | yes |
185.107.4.x/24 | /14 | UNROUTED | no |
185.109.4.x/24 | /13 | 5466 | yes |
185.97.4.x/24 | /12 | 24961 | yes |
185.121.4.x/24 | /11 | 42689 | yes |
185.73.4.x/24 | /10 | 197907 | yes |
185.41.4.x/24 | /9 | 16211 | yes |
185.233.4.x/24 | /8 | UNROUTED | 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 |
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 13 IP hop(s).
Summary:
The results from all tests are aggregated to produce a summary
"State of IP Spoofing" report.
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