U2000 behind firewall - Port Forwarding

Chenxintao · Created Jun 25, 2021 01:50:03

Posted by Negoz at 2021-06-25 00:01 This is the design, I just to allow certain ports on the firewall (port forwarding) to bring OLT to ...

Hello, friend!
According to the pictures you provided, is this just a design drawing, or is this the actual topology of the network?
Your question is: Do you fail to add an OLT through the U2000 because the firewall intercepts packets between the device and the U2000? Do you want to solve this problem by forwarding firewall ports?
But in your above information: SNMP is working, I can do SNMP walk from the server and it successfully return all OIDs.
It seems SNMP works again, so I'm not sure if your problem is caused by the firewall.
Please Check whether the community names of the U2000 and NEs are the same when adding NEs.

jason_hu · Created Jun 24, 2021 12:26:46

Hello,
We're working on your problem. Please be patient.

Chenxintao · Created Jun 24, 2021 12:27:41

Hi, friend!
Can you provide your U2000 version and OLT model and version? And your city?
Thanks!

Negoz · Created Jun 24, 2021 13:13:55

Posted by Chenxintao at 2021-06-24 12:27 Hi, friend!Can you provide your U2000 version and OLT model and version? And your city?Thanks!

U2000 Version: V200R018C50SPC200
OLT : EA5801-GP08
OLT Version: EA5801V100R019C00

Chenxintao · Created Jun 24, 2021 13:52:08

Posted by Negoz at 2021-06-24 13:13 U2000 Version: V200R018C50SPC200 OLT : EA5801-GP08 OLT Version: EA5801V100R019C00

Hi, my friend!
I've read it for a long time, but I don't understand your question. Are you trying to isolate ports?

Negoz · Created Jun 25, 2021 00:01:50

topology

This is the design, I just to allow certain ports on the firewall (port forwarding) to bring OLT to the NMS.

Chenxintao · Created Jun 25, 2021 01:50:03

Posted by Negoz at 2021-06-25 00:01 This is the design, I just to allow certain ports on the firewall (port forwarding) to bring OLT to ...

Hello, friend!
According to the pictures you provided, is this just a design drawing, or is this the actual topology of the network?
Your question is: Do you fail to add an OLT through the U2000 because the firewall intercepts packets between the device and the U2000? Do you want to solve this problem by forwarding firewall ports?
But in your above information: SNMP is working, I can do SNMP walk from the server and it successfully return all OIDs.
It seems SNMP works again, so I'm not sure if your problem is caused by the firewall.
Please Check whether the community names of the U2000 and NEs are the same when adding NEs.

Negoz · Created Jun 25, 2021 02:57:12

Posted by Chenxintao at 2021-06-25 01:50 Hello, friend!According to the pictures you provided, is this just a design drawing, or is this th ...

This is the actual topology. I just need to know the list of TCP/UDP ports I need to open on firewall to add the OLT to U2000. Community Strings are fine.

Chenxintao · Created Jun 25, 2021 03:28:20

Posted by Negoz at 2021-06-25 02:57This is the actual topology. I just need to know the list of TCP/UDP ports I need to open on firew ...

Hello, friend!
So, as you say in your question, if ports 161 and 162 are enabled, OLT can be added to the NMS in this topology.

If the addition fails, provide the error information displayed by the system. Then, I can locate the fault.

Diego.Silva · Created Jun 26, 2021 22:02:48

In the scenarios I worked on, the U2000-B doesn't work very well behind NAT.

U2000 behind firewall - Port Forwarding

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U2000 behind firewall - Port Forwarding

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