[root@master ~]# dig 192-168-2-203.realhostip.com

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.17.rc1.el6_4.4 <<>> 192-168-2-203.realhostip.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 19059
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;192-168-2-203.realhostip.com.  IN      A

;; Query time: 24 msec
;; SERVER: 192.168.2.1#53(192.168.2.1)
;; WHEN: Thu Jul 18 20:45:33 2013
;; MSG SIZE  rcvd: 46

[root@master ~]# dig +short 192-168-2-203.realhostip.com
[root@master ~]#