Just a little hint. Who uses Accescontroll under FOS (FC Switches FOS 8/9) can not use a CIDR entry. Then the SNMP access from SanNav, or the old BNA, fails.

test:FID128:admin> snmpconfig --show accesscontrol

SNMP access list configuration:
Entry 0:  Access host subnet area 192.168.1.10/27 (rw)
Entry 1:  No access host configured yet
Entry 2:  No access host configured yet
Entry 3:  No access host configured yet
Entry 4:  No access host configured yet
Entry 5:  No access host configured yet
test:FID128:admin>

That dosent work. The command snmpconfig –set accesscontrol will take that format als legal/allowed. But it ends up with a „Discovered: SNMP communication failed. SNMP credentials may be invalid. „. Confirmed by Case.
If you need it, the only way is to take the whole net. 192.168.1.0 is working.