grp_21    Link encap:Ethernet  HWaddr 5a:4c:6b:b5:27:80  
          inet6 addr: fe80::584c:6bff:feb5:2780/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:12 errors:0 dropped:0 overruns:0 frame:0
          TX packets:21 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1048 (1.0 KB)  TX bytes:1810 (1.8 KB)