Session Report
Summary:
Test run at: 2017-06-11 15:13:48 GMT
Client Prefix (v4): 195.181.219.x/24
Client AS (v4): 24806 (INTERNET-CZ)
IPv4 Probes: 131
Outbound spoofing summary (from the client to our server) |
Source address type |
IPv4 |
Private -
RFC1918 |
blocked |
Routable |
blocked |
Largest spoofable neighbor prefix length |
/24 |
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 (195.181.219.x/24) can spoof 255 neighboring addresses (within your /24 prefix)
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
195.181.219.x/24 | /31 | 24806 | yes |
195.181.219.x/24 | /30 | 24806 | yes |
195.181.219.x/24 | /29 | 24806 | yes |
195.181.219.x/24 | /28 | 24806 | yes |
195.181.219.x/24 | /27 | 24806 | yes |
195.181.219.x/24 | /26 | 24806 | yes |
195.181.219.x/24 | /25 | 24806 | yes |
195.181.219.x/24 | /24 | 24806 | yes |
195.181.218.x/24 | /23 | 24806 | no |
195.181.217.x/24 | /22 | 24806 | no |
195.181.223.x/24 | /21 | 24806 | no |
195.181.211.x/24 | /20 | 24806 | no |
195.181.203.x/24 | /19 | 43016 | no |
195.181.251.x/24 | /18 | 48689 | no |
195.181.155.x/24 | /17 | 203424 | no |
195.181.91.x/24 | /16 | 48159 | no |
195.180.219.x/24 | /15 | 6659 | no |
195.183.219.x/24 | /14 | 2686 | no |
195.177.219.x/24 | /13 | 60168 | no |
195.189.219.x/24 | /12 | 41024 | no |
195.165.219.x/24 | /11 | 1759 | no |
195.149.219.x/24 | /10 | 34347 | no |
195.245.219.x/24 | /9 | UNROUTED | no |
195.53.219.x/24 | /8 | 3352 | 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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