while installation of ZLM7.2 IR2 went fine but
while doing configuration it is failing with this error

Traceback (most recent call last):
File "/home/IR2ZLM/data/zlmconfig.py", line 677, in ?
File "/home/IR2ZLM/data/zlmconfig.py", line 400, in main
hostname,aliases,ipaddrlist = socket.gethostbyaddr(config_IP)
socket.gaierror: (-2, 'Name or service not known')

SLES 10 SP1 is installed on vmware(esx)

can any one help me
thanks in advance