Assuming the clients talk LDAP, yes. Of course, specifics of how to get configure non-OpenLDAP clients is a topic for other forums.
It is noted that LDAPv2 is historic [RFC3494] and should be
avoided.
Seems you want to configure slapd(8) to accept a version 2 bind.
The slapd.conf(5) directive is:
allow bind_v2
This should be placed in the global section. If slapd(8) is
not starting when you use this, enable some logging to see
what the problem is.
Kurt
