Apr 29 22:32:27 tstack-centos5 dhclient: DHCPACK from 10.1.10.1 (xid=0xd16b79d)
 key  41:41                                          ^                                        
 sym  41:48                                           ^-----^                                 DHCPACK
pair  41:48                                           ^-----^                                 DHCPACK
 key  54:54                                                       ^                           
ipv4  54:63                                                        ^-------^                  10.1.10.1
pair  54:63                                                        ^-------^                  10.1.10.1
 key  65:65                                                                  ^                
 key  65:68                                                                   ^-^             xid
 hex  69:78                                                                       ^-------^   0xd16b79d
 val  69:78                                                                       ^-------^   0xd16b79d
pair  65:78                                                                   ^-----------^   xid=0xd16b79d
 grp  65:78                                                                   ^-----------^   xid=0xd16b79d
pair  65:78                                                                   ^-----------^   xid=0xd16b79d
msg         :DHCPACK from 10.1.10.1 (xid=0xd16b79d)
format      :# from # (#)
{
    "col_0": "DHCPACK",
    "col_1": "10.1.10.1",
    "col_2": [
        {
            "xid": "0xd16b79d"
        }
    ]
}