log timestamp precision 6
log file frr.log

debug northbound notifications
debug northbound libyang
debug northbound events
debug northbound callbacks
debug mgmt backend datastore frontend transaction
debug mgmt client backend
debug mgmt client frontend

interface r4-eth0
  ip address 101.0.0.4/24
  ipv6 address 2101::4/64
exit

ip route 11.0.0.0/24 101.0.0.1
ip route 12.0.0.0/24 101.0.0.2

ipv6 route 2012::/48 2101::2
ipv6 route 2013::/48 2101::3