Session Report
Summary:
Test run at: 2020-10-23 16:57:18 GMT
Client Prefix (v4): 5.181.234.x/24
Client AS (v4): 9009 (M247)
IPv4 Probes: 75
Client Prefix (v6): 2a0d:5600:xx::/40
Client AS (v6): 9009 (M247)
IPv6 Probes: 68
Outbound spoofing summary (from the client to our server) |
Source address type |
IPv4 | IPv6 |
Private -
RFC1918 or ULA |
blocked | blocked |
Routable |
blocked | blocked |
Largest spoofable neighbor prefix length |
none | 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 (5.181.234.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
5.181.234.x/24 | /31 | 9009 | natblock |
5.181.234.x/24 | /30 | 9009 | natblock |
5.181.234.x/24 | /29 | 9009 | natblock |
5.181.234.x/24 | /28 | 9009 | natblock |
5.181.234.x/24 | /27 | 9009 | natblock |
5.181.234.x/24 | /26 | 9009 | natblock |
5.181.234.x/24 | /25 | 9009 | natblock |
5.181.234.x/24 | /24 | 9009 | natblock |
5.181.235.x/24 | /23 | 9009 | natblock |
5.181.232.x/24 | /22 | 9009 | natblock |
5.181.238.x/24 | /21 | 42947 | natblock |
5.181.226.x/24 | /20 | UNROUTED | natblock |
5.181.250.x/24 | /19 | 209116 | natblock |
5.181.202.x/24 | /18 | 35444 | natblock |
5.181.170.x/24 | /17 | 49453 | natblock |
5.181.106.x/24 | /16 | 43915 | natblock |
5.180.234.x/24 | /15 | 61317 | natblock |
5.183.234.x/24 | /14 | 56689 | natblock |
5.177.234.x/24 | /13 | 20978 | natblock |
5.189.234.x/24 | /12 | 50340 | natblock |
5.165.234.x/24 | /11 | 51604 | natblock |
5.149.234.x/24 | /10 | 12611 | natblock |
5.245.234.x/24 | /9 | 34400 | natblock |
5.53.234.x/24 | /8 | 13124 | 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. |
IPv4 Outbound Filtering Depth:
The tracefilter test found your host
unable to spoof routable, non-adjacent source addresses through
even the first IP hop.
IPv6 probes:
Spoofed source address | Destination | Received
|
---|
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
2a0d:5600:xx::/40 | /120 | 9009 | natblock |
2a0d:5600:xx::/40 | /112 | 9009 | natblock |
2a0d:5600:xx::/40 | /104 | 9009 | natblock |
2a0d:5600:xx::/40 | /96 | 9009 | natblock |
2a0d:5600:xx::/40 | /88 | 9009 | natblock |
2a0d:5600:xx::/40 | /80 | 9009 | natblock |
2a0d:5600:xx::/40 | /72 | 9009 | natblock |
2a0d:5600:xx::/40 | /64 | 9009 | natblock |
2a0d:5600:xx::/40 | /56 | 9009 | natblock |
2a0d:5600:xx::/40 | /48 | 9009 | natblock |
2a0d:5600:xx::/40 | /40 | UNROUTED | natblock |
2a0d:5600:80xx::/40 | /32 | UNROUTED | natblock |
2a0d:5680:xx::/40 | /24 | UNROUTED | natblock |
2a0d:d600:xx::/40 | /16 | UNROUTED | 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. |
Summary:
The results from all tests are aggregated to produce a summary
"State of IP Spoofing" report.
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