https://forums.oracle.com/forums/message.jspa?messageID=9438964#9438964 [1]
I followed the instructions from http://www.java.net/node/676636 [2]
and changed "/etc/hosts" file:
1) commented out the "internal" IP addresses in the first two lines
2) and added a the external IP address
#127.0.0.1 localhost
#127.0.1.1 lennyserver
192.168.0.202 lennyserver
The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts