[Discuss-gnuradio] USRP connection problem

hi,

First time I am using USRP E310.I am not able to connect to host computer how to solve the problem.How to find out IP adress of USRP

ubuntu@ubuntu:~$ ping 192.168.10.2
PING 192.168.10.2 (192.168.10.2) 56(84) bytes of data.
From 192.168.10.1 icmp_seq=1 Destination Host Unreachable
From 192.168.10.1 icmp_seq=2 Destination Host Unreachable
From 192.168.10.1 icmp_seq=3 Destination Host Unreachable
From 192.168.10.1 icmp_seq=4 Destination Host Unreachable