Hi there,

I have this current configuration:
ISP Modem -> Mini -> My Router and directly from My Router there is a Synology NAS
In the Routing ->IP Config I've set the IP of my NAS to Direct Route (I think doesn't work if DPN is Disabled)

The problem I'm facing is that few days ago I saw some sort of admin login tries on my Synology. Don't get me wrong this doesn't scare me as I've already disabled the admin account but it's still annoying to see this on my logs, and from the IP Addresses I can tell they are coming though the Mini DP.

Connection
2021-07-31 08:35:48
SYSTEM
User [admin] from [93.240.122.61] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 08:35:45
admin
User [admin] from [93.240.122.61] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 08:33:03
SYSTEM
User [admin] from [60.137.160.218] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 08:32:57
admin
User [admin] from [60.137.160.218] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 08:29:32
SYSTEM
User [admin] from [59.21.114.29] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 08:29:29
admin
User [admin] from [59.21.114.29] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 08:26:47
SYSTEM
User [admin] from [27.152.72.238] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 08:26:42
admin
User [admin] from [27.152.72.238] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 08:23:14
SYSTEM
User [admin] from [181.120.190.101] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 08:23:09
admin
User [admin] from [181.120.190.101] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 08:20:26
SYSTEM
User [admin] from [27.156.248.114] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 08:20:22
admin
User [admin] from [27.156.248.114] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 08:16:48
SYSTEM
User [admin] from [101.96.142.229] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 08:16:45
admin
User [admin] from [101.96.142.229] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 08:13:50
SYSTEM
User [admin] from [89.145.206.105] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 08:13:45
admin
User [admin] from [89.145.206.105] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 08:10:20
SYSTEM
User [admin] from [124.128.80.73] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 08:10:15
admin
User [admin] from [124.128.80.73] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 08:07:23
SYSTEM
User [admin] from [140.206.188.198] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 08:07:18
admin
User [admin] from [140.206.188.198] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 08:03:56
SYSTEM
User [admin] from [124.78.158.25] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 08:03:49
admin
User [admin] from [124.78.158.25] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 08:00:45
SYSTEM
User [admin] from [222.117.12.192] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 08:00:40
admin
User [admin] from [222.117.12.192] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 07:57:22
SYSTEM
User [admin] from [122.224.167.146] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 07:57:17
admin
User [admin] from [122.224.167.146] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 07:54:40
SYSTEM
User [admin] from [103.3.234.61] failed to log in via [DSM] due to authorization failure.
Warning
Connection
2021-07-31 07:54:35
admin
User [admin] from [103.3.234.61] failed to log in via [DSM] due to authorization failure.

Do you have some sort of automatic login checks that can pass through the mini,
The NAS ports used for the DSM are 5000 and 5001. Are you transmitting something though this ports?

Cheers,
Andrei

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