Apr 29 22:32:27 tstack-centos5 dhclient: DHCPACK from 10.1.10.1 (xid=0xd16b79d)
word  49:53                                                   ^--^                            from
 key  49:53                                                   ^--^                            from
ipv4  54:63                                                        ^-------^                  10.1.10.1
 val  54:63                                                        ^-------^                  10.1.10.1
pair  49:63                                                   ^------------^                  from 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
 val  65:78                                                                   ^-----------^   xid=0xd16b79d
pair  65:78                                                                   ^-----------^   xid=0xd16b79d
msg         :DHCPACK from 10.1.10.1 (xid=0xd16b79d)
format      :DHCPACK from # (#)
{
    "from": "10.1.10.1",
    "col_0": [
        {
            "xid": "0xd16b79d"
        }
    ]
}