Snippet from R1 acting as ASBR with static route towards external router showing the redistribution of the external route into OSPF.

R1

ip route 3.3.3.3 255.255.255.255 10.10.10.2 weight 1
ip route 3.3.3.3 255.255.255.255 10.10.10.2 enable

ip prefix-list StaticOSPFRedistribute 3.3.3.3/32 ge 32 le 32

route-map “OSPFStatic” 1
enable
match network “StaticOSPFRedistribute”
exit

router ospf
as-boundary-router enable

redistribute static route-map “OSPFStatic”
redistribute static metric 10
redistribute static metric-type type1
redistribute static enable
exit

#WARNING: Routes will not be injected until apply command is issued after enable command

ip ospf apply redistribute static

show ip route
show ip ospf redistribute
show ip prefix-list
show route-map
show route-map detail