D-Link NetDefend DFL-CP310 Cli Reference Manual page 192

net dmz ospf md5
E 1
XAMPLE
The following command enables authentication for OSPF connections:
set net dmz ospf md5 enabled true key 1 password thepassword
E 2
XAMPLE
The following command displays the DMZ's OSPF MD5 authentication settings:
show net dmz ospf md5
180 D-Link NetDefend CLI Reference Guide