grp_21    Link encap:Ethernet  HWaddr b2:e6:45:8b:cf:46  
          inet6 addr: fe80::b0e6:45ff:fe8b:cf46/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:489 errors:0 dropped:0 overruns:0 frame:0
          TX packets:637 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:38440 (38.4 KB)  TX bytes:51030 (51.0 KB)