adding two devices in DCE with the same hostname

[DCIM_Support]

I'm trying to add to DCE two devices which are in a remote location. I'm accessing to the devices using a NAT so I access to the local router. One of them with port 8161 and the other with the port 9161.

When add one of them, cannot add the second and viceversa. Both are getting the same hostname and I supose that can be the problem.

Any suggestion?

Best regards,

Enric Climent

(CID:104173774)

[DCIM_Support]

Hi Enric,

I would absolutely look into the hostname issue. I'm assuming they have different IPs though correct. Look at both the actual IP and the translated IP. Are either of these devices on the private LAN or both public? What devices are you adding, SNMP / NetBotz?

Since 2 devices should not have the same hostname on the same network anyway, have you tried renaming one of them? We are talking actual DNS hostnames correct and not the hostname field of the device? Have you tried removing the DNS entries within DCE? I would think that without DNS, the actual hostnames would not matter.

Steve

(CID:104173779)

[DCIM_Support]

Hi Steve,

Two devices are in a LAN with different IP addresses and hostnames but DCE access to theses devices trhough a public IP address and different ports using NAT.DCE is working with public address only, not with LAN addresses.

Regards,

Enric

(CID:104173888)

[DCIM_Support]

Hi Enric,

Yes, if the 2 devices have the same IP from DCE's point of view, you can not add both. This would be the same if it were the NAT or possibly even LAN IPs. SNMP within DCE does not distinguish between 2 IPs by port, only IP. If the IPs are the same, it will not be allowed.

Steve

(CID:104173889)

[DCIM_Support]

I agree with Enric: at the moment it is impossible to add SNMP-devices with identical IP-addresses to DCE, but, for example, with different "community string". And in my opinion it is the considerable lack of DCE.

Personally I dealt with such problem, when implemented the decision on collaboration of the DCE and SNMP-proxy server for monitoring of non-standard SNMP-devices (with the limited and incomplete version of SNMP-protocol, for example, Emerson Liebert Powerface controllers with HiSNMP adapters). For the solution of this problem it was necessary to up on SNMP-proxy server network aliases. And their quantity was equal to number of SNMP-devices which needed to be connected to monitoring. Thus the DCE server "saw" not one real IP-address SNMP-proxy server, and it is a lot of different virtual IP-addresses (and the problem of adding devices disappears :-).

Very thanks for the support.

(CID:104173837)

[DCIM_Support]

Hi Enric,

The only way I know for this to work is to use different IPs. I know of no way getting it to work with your current config and DCE as your setup exists currently. You'd either need to reconfigure the IPs or use a separate DCE server / VM to monitor the second device.

Steve

(CID:104173897)

[DCIM_Support]

Thanks Steve,

Do you have plan to support this kind of connections. Really the customer is connecting by dyndns but as this is not supported by DCE, he is doing the connection with the public IP address.

Regards,

Enric

(CID:104173966)

[DCIM_Support]

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