FTP to SCP issue

[Angwenyi]

Dear Team,

We have a customer who recently disabled all FTP port 21 communication and advised to use SCP.

I have enabled SSH/SCP on 2 x Symmetra PX 500 AP9635 cards but on rediscovering on DCE they are discovered but remain on initializing state eventually doesn't load the sensors

In this state I can still launch the UPS on DCE using HTTPS.

Could the units not be communicating properly with DCE through SSH/SCP port 22, the behaviour is like they can't load DDF which is already pre installed.

I have attached screenshots of the same.

Thank you.

[APC_Steve]

Hi @Angwenyi ,

A device in a state of initializing indicates that the DCE is taking a long time to obtain SNMP info. You may still have issues with SCP if there's a DDF error but that DDF won't stop it from getting discovered.

I'm assuming you're using SNMP v3, have you triple-checked your credentials?

I'd suggest making sure DCE is up to date (didn't see a version).

I suggest going to the DCE web page and click the top link for "view status".

Then, under Additional Information: Click SNMP Device walk.

Can you walk the device in a timely manner or does it take a long time (with the same credentials) or even fail?

For a test, if you're able, can you try a discovery of the device using SNMP version 1?

If you check all of this and you're still having issues, perhaps you want to contact your local support team.

Thanks,

Steve

[Angwenyi]

Hi Steve,

Thank you for your response, apologies for the late response been in a remote site with limited internet connectivity.

I tried reverting to SNMP v1 but still had the same issue after double checking my SNMP v3 credentials.

Customer is using DCE v8.3.0, and I did do SNMP device walk with both SNMP v1 and v3 and both responded immediately.

I will have a look once again what could be the issue whether it's customer network restriction and update.

Thank you.

[Angwenyi]

Hi Steve,

So I requested the FTP ports be opened temporarily and tried the device discovery which ended up working ok.

The customer later closed the port and devices still communicated with DCE.

It took long to convice the customer to grant the port opening.

Should we assume APC devices have to be added using FTP port 21 only then closed afterwords now that this only happens with APC devices.

Thank you.

Felix