Fortinet
AS40934
Unknown
⚠ 1 LAN hygiene issue
Fortinet AS40934
Unknown
Sending IPv6 Router Advertisement into the exchange LAN
critical
Advertises this router as a default gateway to every other member on the exchange (free transit / traffic hijack).
- lifetime 1800s prefix 2001:504:30::/64
How to fix
Source MAC: c8:47:09:a4:48:db
· last heard 0 minutes ago
· 21976 frames
L2 · LAN events →
Arista: ipv6 nd ra disabled allCisco: ipv6 nd ra suppress allJunos: delete protocols router-advertisement interface <ifl>RouterOS: /ipv6 nd set [find] disabled=yesLinux: stop radvd on the IX interface
switch01.scl05Port-Channel100
LAG
1×10G
— No data
L2
Link
Public
MAC addresses learned on port
| MAC | VLAN | Type | First seen | Last seen |
|---|---|---|---|---|
| c8:47:09:a4:48:db | 998 | dynamic | 2026-06-18 | 0 minutes ago |
c8:47:09:a4:48:db
VLAN
998
Type
dynamic
First seen
2026-06-18
Last seen
0 minutes ago
L3
Network
Public
Heard on the fabric · ARP/NDP
| IP address | MAC | First seen | Last seen |
|---|---|---|---|
| 206.197.187.55 | c8:47:09:a4:48:db | 2026-06-19 | 13 minutes ago |
| 2001:504:30::ba04:934:1 | c8:47:09:a4:48:db | 2026-06-19 | 11 minutes ago |
206.197.187.55
IPv4
MAC
c8:47:09:a4:48:db
First seen
2026-06-19
Last seen
13 minutes ago
2001:504:30::ba04:934:1
IPv6
MAC
c8:47:09:a4:48:db
First seen
2026-06-19
Last seen
11 minutes ago
L4+
Route Servers
Public
| Route Server | State | Uptime | AF | Received | Accepted | Rejected |
|---|---|---|---|---|---|---|
|
BIRD/Linux Route Server ↗
206.197.187.55
|
up | 63d 2h | IPv4 | 6 | 6 | 0 |
| IPv6 | — | — | 0 | |||
|
BIRD/Linux Route Server ↗
2001:504:30::ba04:934:1
|
up | 63d 2h | IPv6 | — | — | 0 |
|
Looking Glass Service ↗
206.197.187.55
|
established | 25d 23h | IPv4 | 6 | — | 0 |
| IPv6 | — | — | 0 | |||
|
Looking Glass Service ↗
2001:504:30::ba04:934:1
|
established | 25d 23h | IPv6 | — | — | 0 |
|
OpenBGPD/OpenBSD Route Server ↗
206.197.187.55
|
established | 63d 2h | IPv4 | 6 | — | 0 |
| IPv6 | — | — | 0 | |||
|
OpenBGPD/OpenBSD Route Server ↗
2001:504:30::ba04:934:1
|
established | 63d 2h | IPv6 | — | — | 0 |
|
Quarantine VLAN Looking Glass ↗
206.197.187.55
|
connect | 25d 23h | IPv4 | — | — | 0 |
| IPv6 | — | — | 0 | |||
|
Quarantine VLAN Looking Glass ↗
2001:504:30::ba04:934:1
|
connect | 25d 23h | IPv6 | — | — | 0 |
v4
6/6/0
v6
0/0/0
Looking Glass Service ↗
established
v4
6/0/0
Looking Glass Service ↗
established
v6
0/0/0
OpenBGPD/OpenBSD Route Server ↗
established
v4
6/0/0
OpenBGPD/OpenBSD Route Server ↗
established
v6
0/0/0
Quarantine VLAN Looking Glass ↗
connect
v4
0/0/0
Quarantine VLAN Looking Glass ↗
connect
v6
0/0/0