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.
Warnings:
⚠️ Your host is behind a Network Address Translation (NAT) router or firewall but spoofed packets are still being received without modification. See here for more information.
IPv4 AS Route:
This test run probed the following paths in order to infer your
ability to send different spoofed source packets. Each node
in the graph corresponds to an autonomous system, i.e.
different Internet service providers. NOTE: This graph does NOT show if
an AS blocks spoofed packets, only the path taken by received spoofed
packets. The IP Path Details
are available for this run. If non-spoofed packets weren't received at
a destination, the traceroute to that destination is not included in this
graph and may even cause a totally empty graph.
IPv4 Adjacent Netblock Testing:
Your host (79.132.98.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)
Spoofed source address (anon)
Prefix Length
ASN of spoofed source address
Received
79.132.98.x/24
/31
UNROUTED
yes
79.132.98.x/24
/30
UNROUTED
yes
79.132.98.x/24
/29
UNROUTED
yes
79.132.98.x/24
/28
UNROUTED
yes
79.132.98.x/24
/27
UNROUTED
natblock
79.132.98.x/24
/26
UNROUTED
yes
79.132.98.x/24
/25
UNROUTED
yes
79.132.98.x/24
/24
UNROUTED
yes
79.132.99.x/24
/23
UNROUTED
yes
79.132.96.x/24
/22
UNROUTED
yes
79.132.102.x/24
/21
UNROUTED
yes
79.132.106.x/24
/20
UNROUTED
yes
79.132.114.x/24
/19
UNROUTED
yes
79.132.66.x/24
/18
20910
yes
79.132.34.x/24
/17
43763
yes
79.132.226.x/24
/16
9031
yes
79.133.98.x/24
/15
39150
yes
79.134.98.x/24
/14
16302
yes
79.128.98.x/24
/13
6799
yes
79.140.98.x/24
/12
15774
yes
79.148.98.x/24
/11
3352
yes
79.164.98.x/24
/10
8615
yes
79.196.98.x/24
/9
3320
yes
79.4.98.x/24
/8
3269
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)
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
able to spoof routable, non-adjacent source addresses through the
first 10 IP hop(s).
IPv6 AS Route:
This test run probed the following paths in order to infer your
ability to send different spoofed source packets. Each node
in the graph corresponds to an autonomous system, i.e.
different Internet service providers. NOTE: This graph does NOT show if
an AS blocks spoofed packets, only the path taken by received spoofed
packets. The IP Path Details
are available for this run. If non-spoofed packets weren't received at
a destination, the traceroute to that destination is not included in this
graph and may even cause a totally empty graph.
IPv6 probes:
Spoofed source address
Destination
Received
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)
Prefix Length
ASN of spoofed source address
Received
2a00:1138:xx::/40
/120
43782
yes
2a00:1138:xx::/40
/112
43782
yes
2a00:1138:xx::/40
/104
43782
yes
2a00:1138:xx::/40
/96
43782
yes
2a00:1138:xx::/40
/88
43782
yes
2a00:1138:xx::/40
/80
43782
yes
2a00:1138:xx::/40
/72
43782
yes
2a00:1138:xx::/40
/64
43782
yes
2a00:1138:xx::/40
/56
43782
natblock
2a00:1138:xx::/40
/48
43782
natblock
2a00:1138:xx::/40
/40
43782
natblock
2a00:1138:80xx::/40
/32
43782
natblock
2a00:11b8:xx::/40
/24
44009
natblock
2a00:9138:xx::/40
/16
UNROUTED
natblock
Meaning of status in Received column:
yes
Packets spoofed from adjacent netblock were received (but that netblock is within the source AS)
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.
