If I configure low-level discovery by oid bgpPeerRemoteAs then in {#SNMPINDEX} I got not IP-addresses (as I expected based on snmpwalk) but only first octet of each IP, and "item already exists" error for peers with the same first octet.
It will be useful if {#SNMPINDEX} will contain full dot-separated part of the discovered oid and not only decimal number (first octet).
The same problem is for discovery by jnxOperatingDescr and some other oids.