LINA/SNMP Hostname for a 3100 node in a Cluster

[red2play]

I made changes to the hostname after implementation and I changed it via the FMC and via the "configure network hostname" command on the FTD but when I try to add to SNMP manager, it cannot add because its showing the old hostname which is the same as the first node in the cluster.

Now I can't add the node to my SNMP manager and when I go to the diagnostic command line via (name changed from original):

> system support diagnostic-cli
Attaching to Diagnostic CLI ... Press 'Ctrl+a then d' to detach.
Type help or '?' for a list of available commands.

OLD-HOSTNAME#

How do I change the hostname beyond just the configure hostname command and the FMC?

[balaji.bandi]

Not sure is this SNMP you looking to configure or FMC re configuring FTD ?  

is this same IP address ? then remove and re-regist again ?

[red2play]

This is when I'm trying to poll the FTD 31xx via the SNMP Manager, it returns the wrong hostname when polling.  The hostname happens to be the same as another node.  They are both in the cluster. 

For instance, C3100-FW-01 is the first FTD device and C3100-FW-02 is supposed to be the 2nd node in the cluster.  However, when initially setup, C3100-FW-02 was mistakenly setup as C3100-FW-01.  Once I went in and changed the hostname via the FMC and "configure network hostname".   However, when using system support diagnostic-cli, the hostname shows up as C3100-FW-01 and the SNMP manager can't add C3100-FW-02 because it shows up as C3100-FW-01, the same as the other node mentioned above.

[red2play]

Let me make it simple.  From the system support diagnostic-cli, when I type in show hostname, it comes up with the wrong hostname.  How do I change the hostname that's displayed from the system support diagnostic-cli prompt.

[MHM Cisco World]

SNMP Version 3 Tools Implementation Guide - Overview [Cisco ASA 5500-X Series Firewalls] - Cisco

check this 
you can use interface connect to SNMP.