In oracle, how does one obtain the local IP address and the domain name based on the IP address?

In oracle, how does one obtain the local IP address and the domain name based on the IP address?
----- Resolve the ip address
SQL> select utl_inaddr.get_host_address ('Google. com') from dual;

UTL_INADDR.GET_HOST_ADDRESS ('Google. com ')
--------------------------------------------------------------------------------
122.229.30.202


----- Obtain the local IP Address
SQL> select utl_inaddr.get_host_address from dual;
GET_HOST_ADDRESS
--------------------------------------------------------------------------------
10.80.18.241



----- Reverse resolution of the host name based on the IP address
SQL> select utl_inaddr.get_host_name ('10. 80.18.241 ') from dual;
UTL_INADDR.GET_HOST_NAME ('10. 80.18.241 ')
--------------------------------------------------------------------------------
Lixora




SQL> select utl_inaddr.get_host_name ('10. 80.18.243 ') from dual;


UTL_INADDR.GET_HOST_NAME ('10. 80.18.243 ')
--------------------------------------------------------------------------------
Oracle11g-dagi




SQL> select utl_inaddr.get_host_name ('8. 8.8.8 ') from dual;
UTL_INADDR.GET_HOST_NAME ('8. 8.8.8 ')
--------------------------------------------------------------------------------
Google-public-dns-a.google.com



SQL> select utl_inaddr.get_host_name ('10. 80.18.210 ') from dual;
Select utl_inaddr.get_host_name ('10. 80.18.210 ') from dual
*
ERROR at line 1:
ORA-29257: host 10.80.18.210 unknown
ORA-06512: at "SYS. UTL_INADDR", line 4
ORA-06512: at "SYS. UTL_INADDR", line 35
ORA-06512: at line 1



SQL> select utl_inaddr.get_host_name ('10. 80.19.210 ') from dual;
Select utl_inaddr.get_host_name ('10. 80.19.210 ') from dual
*
ERROR at line 1:
ORA-29257: host 10.80.19.210 unknown
ORA-06512: at "SYS. UTL_INADDR", line 4
ORA-06512: at "SYS. UTL_INADDR", line 35
ORA-06512: at line 1