Apr 29 22:32:26 tstack-centos5 dhclient: DHCPREQUEST on eth0 to 10.1.10.1 port 67 (xid=0xd16b79d)
word  61:63                                                               ^^                                    to
 key  61:63                                                               ^^                                    to
ipv4  64:73                                                                  ^-------^                          10.1.10.1
 val  64:73                                                                  ^-------^                          10.1.10.1
pair  61:73                                                               ^----------^                          to 10.1.10.1
word  74:78                                                                            ^--^                     port
 key  74:78                                                                            ^--^                     port
 num  79:81                                                                                 ^^                  67
 val  79:81                                                                                 ^^                  67
pair  74:81                                                                            ^-----^                  port 67
 key  83:83                                                                                    ^                
 key  83:86                                                                                     ^-^             xid
 hex  87:96                                                                                         ^-------^   0xd16b79d
 val  87:96                                                                                         ^-------^   0xd16b79d
pair  83:96                                                                                     ^-----------^   xid=0xd16b79d
 grp  83:96                                                                                     ^-----------^   xid=0xd16b79d
 val  83:96                                                                                     ^-----------^   xid=0xd16b79d
pair  83:96                                                                                     ^-----------^   xid=0xd16b79d
msg         :DHCPREQUEST on eth0 to 10.1.10.1 port 67 (xid=0xd16b79d)
format      :DHCPREQUEST on eth0 to # port # (#)
{
    "to": "10.1.10.1",
    "port": 67,
    "col_0": [
        {
            "xid": "0xd16b79d"
        }
    ]
}