[TL-ER6020] SNMP port 161 open to Internet

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.

[TL-ER6020] SNMP port 161 open to Internet

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
[TL-ER6020] SNMP port 161 open to Internet
[TL-ER6020] SNMP port 161 open to Internet
2019-05-17 19:37:49 - last edited 2021-04-20 10:55:13
Model: TL-ER6020  
Hardware Version: V2
Firmware Version: 2.0.2 Build 20180702 Rel.59031

I have enabled SNMP but I noticed that the UDP port is open to the Inernet. Is it possible to enable SNMP only from LAN?

 

  0      
  0      
#1
Options
6 Reply
Re:[TL-ER6020] SNMP port 161 open to Internet
2019-05-20 10:08:40 - last edited 2021-04-20 10:55:13

Does it really work the WAN side? I doubt...

As I know, Policy Routing rules will not work for the router itself, so it is useless to configure it in your case.

Have you tried to configure Firewall > Attack defence? Try to enable everything and check, what will happen. Also, try to configure Get/Set Trusted Hosts to be only for your LAN.

  0  
  0  
#2
Options
Re:[TL-ER6020] SNMP port 161 open to Internet
2019-05-20 11:45:08 - last edited 2021-04-20 10:55:13

pavelz00 wrote

I have enabled SNMP but I noticed that the UDP port is open to the Inernet. Is it possible to enable SNMP only from LAN?

 

 

If you disable SNMP, port 161 will become closed?

  0  
  0  
#3
Options
Re:Re:[TL-ER6020] SNMP port 161 open to Internet
2019-05-22 12:41:48 - last edited 2021-04-20 10:55:13

Yes, once I disable SNMP the port 161 is closed. 

  0  
  0  
#4
Options
Re:Re:Re:[TL-ER6020] SNMP port 161 open to Internet
2019-05-23 03:34:17 - last edited 2021-04-20 10:55:13

I think this SNMP feature is only used for LAN and we cannot access through WAN port.

I listened that ER6020 may release the new firmware soon. Maybe you can have a try at that time.

  0  
  0  
#5
Options
Re:Re:[TL-ER6020] SNMP port 161 open to Internet
2019-05-24 15:44:42 - last edited 2021-04-20 10:55:13

I tried to set Get/Set Trusted Hosts to LAN IP but it didn't help. The UDP port is open on WAN interface once I enable SNMP

  0  
  0  
#6
Options
Re:Re:Re:[TL-ER6020] SNMP port 161 open to Internet
2019-05-28 01:21:42 - last edited 2021-04-20 10:55:13

I got a ER6020 and did the test with the software of nmap, did not find the open port of 161. Maybe you can post your screenshot to show us the detail.

  0  
  0  
#7
Options

Information

Helpful: 0

Views: 1962

Replies: 6