Not sure exactly what you are looking to do but I think this may be the minimum with some sort of logging:
-----------------------------------------------------------------
service timestamps debug datetime localtime
service timestamps log datetime localtime
no logging console
logging 172.21.152.50 „²-------------------This changes
logging buffered 4096 debugging
logging trap debugging
logging event dlci-status-change
logging event subif-link-status
snmp-server community public RO „²------/----Use your community strings
snmp-server community private RW „²---/
---------------------------------------------------------
Hope this helps
pat
