(Optional) Enable OBM to use IPV6

To enable OBM operation on a host system that has only the IPv6 protocol stack configured, or to configure OBM to use IPv6 on a host system that has both IP protocol stacks configured, enable the use of IPv6 manually as follows:

Make sure the local host file contains the following line:

127.0.0.1 localhost

Run the following commands in sequence:

Linux
/opt/OV/bin/ovconfchg -ns sec.cm.server -set IsIPV6Enabled TRUE

/opt/OV/bin/ovc -kill

/opt/OV/bin/ovc -start

Windows
%OvInstallDir%\bin\win64\ovconfchg -ns sec.cm.server -set IsIPV6Enabled TRUE

%OvInstallDir%\bin\win64\ovc -kill

%OvInstallDir%\bin\win64\ovc -start

If OBM uses IPv6 on a host system that has only the IPv6 protocol stack configured, to enable its communication with non-OBM host systems that have both IP protocol stacks configured, configure your DNS server so that it resolves hostnames only to IPv6 addresses.

Ref;
https://docs.microfocus.com/doc/Operations_Bridge_Manager/2021.11/EnableIpv6ForObm