Session Report

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| Data: Stats Summary Recent Tests Remediation Results by AS Results by Country Results by Provider |

Summary:

Test run at: 2018-10-23 15:34:00 GMT
Client Prefix (v4): 185.91.118.x/24
Client AS (v4): 200918 (ORELSOFT)
IPv4 Probes: 124
Client Prefix (v6): 2a00:1028:83xx::/40
Client AS (v6): 5610 (O2-CZECH-REPUBLIC)
IPv6 Probes: 82

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 /22 /64

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.

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	/22	/64

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 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 (185.91.118.x/24) can spoof 1023 neighboring addresses (within your /22 prefix)

Spoofed source address (anon) Prefix
Length ASN of spoofed
source address Received

185.91.118.x/24 /31 200918 yes

185.91.118.x/24 /30 200918 yes

185.91.118.x/24 /29 200918 yes

185.91.118.x/24 /28 200918 yes

185.91.118.x/24 /27 200918 yes

185.91.118.x/24 /26 200918 yes

185.91.118.x/24 /25 200918 yes

185.91.118.x/24 /24 200918 yes

185.91.119.x/24 /23 200918 yes

185.91.116.x/24 /22 200918 yes

185.91.114.x/24 /21 12390 natblock

185.91.126.x/24 /20 47474 natblock

185.91.102.x/24 /19 41103 natblock

185.91.86.x/24 /18 205917 natblock

185.91.54.x/24 /17 UNROUTED natblock

185.91.246.x/24 /16 15456 natblock

185.90.118.x/24 /15 200944 natblock

185.89.118.x/24 /14 200874 natblock

185.95.118.x/24 /13 16019 natblock

185.83.118.x/24 /12 201172 natblock

185.75.118.x/24 /11 48926 natblock

185.123.118.x/24 /10 29422 natblock

185.27.118.x/24 /9 60849 natblock

185.219.118.x/24 /8 44092 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.

Spoofed source address (anon)	Prefix Length	ASN of spoofed source address	Received
185.91.118.x/24	/31	200918	yes
185.91.118.x/24	/30	200918	yes
185.91.118.x/24	/29	200918	yes
185.91.118.x/24	/28	200918	yes
185.91.118.x/24	/27	200918	yes
185.91.118.x/24	/26	200918	yes
185.91.118.x/24	/25	200918	yes
185.91.118.x/24	/24	200918	yes
185.91.119.x/24	/23	200918	yes
185.91.116.x/24	/22	200918	yes
185.91.114.x/24	/21	12390	natblock
185.91.126.x/24	/20	47474	natblock
185.91.102.x/24	/19	41103	natblock
185.91.86.x/24	/18	205917	natblock
185.91.54.x/24	/17	UNROUTED	natblock
185.91.246.x/24	/16	15456	natblock
185.90.118.x/24	/15	200944	natblock
185.89.118.x/24	/14	200874	natblock
185.95.118.x/24	/13	16019	natblock
185.83.118.x/24	/12	201172	natblock
185.75.118.x/24	/11	48926	natblock
185.123.118.x/24	/10	29422	natblock
185.27.118.x/24	/9	60849	natblock
185.219.118.x/24	/8	44092	natblock

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 2 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
2001:48d0:101:501:ec4:7aff:fea8:71a8 2001:388:1:5001:21c:c0ff:fea2:4a3a no
2001:4978:1fb:6400::d2 2001:388:1:5001:21c:c0ff:fea2:4a3a no
2001:49aa:111:aa00::11 2001:388:1:5001:21c:c0ff:fea2:4a3a no
fd11:1111:1111::1111 2001:388:1:5001:21c:c0ff:fea2:4a3a no
2001:48d0:101:501:ec4:7aff:fea8:71a8 2001:48d0:101:501::242 no
2001:4978:1fb:6400::d2 2001:48d0:101:501::242 no
2001:49aa:111:aa00::11 2001:48d0:101:501::242 no
fd11:1111:1111::1111 2001:48d0:101:501::242 no
2001:48d0:101:501:ec4:7aff:fea8:71a8 2001:610:510:115:192:42:115:98 no
2001:4978:1fb:6400::d2 2001:610:510:115:192:42:115:98 no
2001:49aa:111:aa00::11 2001:610:510:115:192:42:115:98 no
fd11:1111:1111::1111 2001:610:510:115:192:42:115:98 no
2001:48d0:101:501:ec4:7aff:fea8:71a8 2001:630:212:225:225:90ff:fe0c:45a6 no
2001:4978:1fb:6400::d2 2001:630:212:225:225:90ff:fe0c:45a6 no
2001:49aa:111:aa00::11 2001:630:212:225:225:90ff:fe0c:45a6 no
fd11:1111:1111::1111 2001:630:212:225:225:90ff:fe0c:45a6 no
2001:48d0:101:501:ec4:7aff:fea8:71a8 2001:708:40:2001:21c:c0ff:fea2:4c5c no
2001:4978:1fb:6400::d2 2001:708:40:2001:21c:c0ff:fea2:4c5c no
2001:49aa:111:aa00::11 2001:708:40:2001:21c:c0ff:fea2:4c5c no
fd11:1111:1111::1111 2001:708:40:2001:21c:c0ff:fea2:4c5c no
2001:48d0:101:501:ec4:7aff:fea8:71a8 2001:770:18:7:225:90ff:fe0c:acb4 no
2001:4978:1fb:6400::d2 2001:770:18:7:225:90ff:fe0c:acb4 no
2001:49aa:111:aa00::11 2001:770:18:7:225:90ff:fe0c:acb4 no
fd11:1111:1111::1111 2001:770:18:7:225:90ff:fe0c:acb4 no
2001:48d0:101:501:ec4:7aff:fea8:71a8 2001:df0:4:800:21c:c0ff:feb2:ad5f no
2001:4978:1fb:6400::d2 2001:df0:4:800:21c:c0ff:feb2:ad5f no
2001:49aa:111:aa00::11 2001:df0:4:800:21c:c0ff:feb2:ad5f no
fd11:1111:1111::1111 2001:df0:4:800:21c:c0ff:feb2:ad5f no
2001:48d0:101:501:ec4:7aff:fea8:71a8 2607:f278:2:13:ba27:ebff:fe3f:b21e no
2001:4978:1fb:6400::d2 2607:f278:2:13:ba27:ebff:fe3f:b21e no
2001:49aa:111:aa00::11 2607:f278:2:13:ba27:ebff:fe3f:b21e no
fd11:1111:1111::1111 2607:f278:2:13:ba27:ebff:fe3f:b21e no

Spoofed source address	Destination	Received
2001:48d0:101:501:ec4:7aff:fea8:71a8	2001:388:1:5001:21c:c0ff:fea2:4a3a	no
2001:4978:1fb:6400::d2	2001:388:1:5001:21c:c0ff:fea2:4a3a	no
2001:49aa:111:aa00::11	2001:388:1:5001:21c:c0ff:fea2:4a3a	no
fd11:1111:1111::1111	2001:388:1:5001:21c:c0ff:fea2:4a3a	no
2001:48d0:101:501:ec4:7aff:fea8:71a8	2001:48d0:101:501::242	no
2001:4978:1fb:6400::d2	2001:48d0:101:501::242	no
2001:49aa:111:aa00::11	2001:48d0:101:501::242	no
fd11:1111:1111::1111	2001:48d0:101:501::242	no
2001:48d0:101:501:ec4:7aff:fea8:71a8	2001:610:510:115:192:42:115:98	no
2001:4978:1fb:6400::d2	2001:610:510:115:192:42:115:98	no
2001:49aa:111:aa00::11	2001:610:510:115:192:42:115:98	no
fd11:1111:1111::1111	2001:610:510:115:192:42:115:98	no
2001:48d0:101:501:ec4:7aff:fea8:71a8	2001:630:212:225:225:90ff:fe0c:45a6	no
2001:4978:1fb:6400::d2	2001:630:212:225:225:90ff:fe0c:45a6	no
2001:49aa:111:aa00::11	2001:630:212:225:225:90ff:fe0c:45a6	no
fd11:1111:1111::1111	2001:630:212:225:225:90ff:fe0c:45a6	no
2001:48d0:101:501:ec4:7aff:fea8:71a8	2001:708:40:2001:21c:c0ff:fea2:4c5c	no
2001:4978:1fb:6400::d2	2001:708:40:2001:21c:c0ff:fea2:4c5c	no
2001:49aa:111:aa00::11	2001:708:40:2001:21c:c0ff:fea2:4c5c	no
fd11:1111:1111::1111	2001:708:40:2001:21c:c0ff:fea2:4c5c	no
2001:48d0:101:501:ec4:7aff:fea8:71a8	2001:770:18:7:225:90ff:fe0c:acb4	no
2001:4978:1fb:6400::d2	2001:770:18:7:225:90ff:fe0c:acb4	no
2001:49aa:111:aa00::11	2001:770:18:7:225:90ff:fe0c:acb4	no
fd11:1111:1111::1111	2001:770:18:7:225:90ff:fe0c:acb4	no
2001:48d0:101:501:ec4:7aff:fea8:71a8	2001:df0:4:800:21c:c0ff:feb2:ad5f	no
2001:4978:1fb:6400::d2	2001:df0:4:800:21c:c0ff:feb2:ad5f	no
2001:49aa:111:aa00::11	2001:df0:4:800:21c:c0ff:feb2:ad5f	no
fd11:1111:1111::1111	2001:df0:4:800:21c:c0ff:feb2:ad5f	no
2001:48d0:101:501:ec4:7aff:fea8:71a8	2607:f278:2:13:ba27:ebff:fe3f:b21e	no
2001:4978:1fb:6400::d2	2607:f278:2:13:ba27:ebff:fe3f:b21e	no
2001:49aa:111:aa00::11	2607:f278:2:13:ba27:ebff:fe3f:b21e	no
fd11:1111:1111::1111	2607:f278:2:13:ba27:ebff:fe3f:b21e	no

IPv6 Adjacent Netblock Testing:

Spoofed source address (anon) Prefix
Length ASN of spoofed
source address Received

2a00:1028:83xx::/40 /120 5610 yes

2a00:1028:83xx::/40 /112 5610 yes

2a00:1028:83xx::/40 /104 5610 yes

2a00:1028:83xx::/40 /96 5610 yes

2a00:1028:83xx::/40 /88 5610 yes

2a00:1028:83xx::/40 /80 5610 yes

2a00:1028:83xx::/40 /72 5610 yes

2a00:1028:83xx::/40 /64 5610 yes

2a00:1028:83xx::/40 /56 5610 no

2a00:1028:83xx::/40 /48 5610 no

2a00:1028:83xx::/40 /40 5610 no

2a00:1028:3xx::/40 /32 5610 no

2a00:10a8:83xx::/40 /24 39596 no

2a00:9028:83xx::/40 /16 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 (but that netblock is within the source AS)

Spoofed source address (anon)	Prefix Length	ASN of spoofed source address	Received
2a00:1028:83xx::/40	/120	5610	yes
2a00:1028:83xx::/40	/112	5610	yes
2a00:1028:83xx::/40	/104	5610	yes
2a00:1028:83xx::/40	/96	5610	yes
2a00:1028:83xx::/40	/88	5610	yes
2a00:1028:83xx::/40	/80	5610	yes
2a00:1028:83xx::/40	/72	5610	yes
2a00:1028:83xx::/40	/64	5610	yes
2a00:1028:83xx::/40	/56	5610	no
2a00:1028:83xx::/40	/48	5610	no
2a00:1028:83xx::/40	/40	5610	no
2a00:1028:3xx::/40	/32	5610	no
2a00:10a8:83xx::/40	/24	39596	no
2a00:9028:83xx::/40	/16	UNROUTED	no

Summary:

The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.

Feedback:

We welcome questions and feedback to the Spoofer Information Mailing List and invite users to join the Spoofer Users Mailing List for discussion and announcements.

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.