[TL-ER6020] SNMP port 161 open to Internet

[TL-ER6020] SNMP port 161 open to Internet
[TL-ER6020] SNMP port 161 open to Internet
2019-05-17 19:37:49 - last edited 2019-05-19 06:53:55
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?

 

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#1
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6 Replies
Re:[TL-ER6020] SNMP port 161 open to Internet
2019-05-20 10:08:40

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.

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Re:[TL-ER6020] SNMP port 161 open to Internet
2019-05-20 11:45:08

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?

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#3
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Re:Re:[TL-ER6020] SNMP port 161 open to Internet
2019-05-22 12:41:48

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

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#4
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Re:Re:Re:[TL-ER6020] SNMP port 161 open to Internet
2019-05-23 03:34:17

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.

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#5
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Re:Re:[TL-ER6020] SNMP port 161 open to Internet
2019-05-24 15:44:42

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

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#6
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Re:Re:Re:[TL-ER6020] SNMP port 161 open to Internet
2019-05-28 01:21:42

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.

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#7
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