Reading jqGrid and JSON

Question

I am new to jQuery and have just started working with jqGrid. I looked through jqGrid docs to figure out how to display some data that I get in JSON format in my grid, but to no avail. When I create a grid, it displays with the correct headers, pager information, etc. Both through Firebug and I can see the JSON data request and response. The JsonReader below is one of many that I have tried, and in function callbacks I can log certain values ​​that I get, so I know that I get data.

What is the correct way to load the JSON indicated below loaded in jqGrid?

Here is the relevant code:

HTML:

<div id="dataInfo">
    <table id="dataTable"></table>
    <div id="dataTablePager"></div>
</div>

Js

jQuery("#dataTable").jqGrid({
              url: 'http://<snip>',
              mtype: 'GET',
              datatype: 'json',
              jsonReader: {
                  root: 'ipResponses',
                  id: 'startIP',
                  repeatitems: false,
                  page:  function(obj) { return 1; },
                  total: function(obj) { return 1; },
                  records: function(obj) { return obj.ipInfo.ipResponses.length; },
                  userdata: "userData"
              },
              colNames: ['StartIP', 'EndIP'],
              colModel: [
                  {
                      name: 'startIP',
                      index: 'startIP',
                      width: 55
                  }, 
                  {
                      name: 'endIP',
                      index: 'endIP',
                      width: 55
                  }
              ],
              pager: '#dataTablePager',
              rowNum: 8,
              rowList: [25,50,100],
              sortname: 'startIP',
              sortorder: 'asc',
              viewrecords: true,
              caption: 'Data',
              pgtext:"Page {0}"
          });

Json

{
    "ipInfo": { 
        "queryStartIP": "4.4.4.0", 
        "queryEndIP": "4.4.4.256", 
        "ipResponses": [
            { "startIP": "4.4.4.1", "endIP": "4.4.4.5"},
            { "startIP": "4.4.4.10", "endIP": "4.4.4.15"}
        ]
    }
}

Answer 1

jsonReader. , ,

jsonReader: {
    root: 'ipInfo.ipResponses',
    id: 'startIP',
    repeatitems: false,
    page:  function(obj) { return 1; },
    total: function(obj) { return 1; },
    records: function(obj) { return obj.ipInfo.ipResponses.length; },
}

jqGrid http://www.ok-soft-gmbh.com/jqGrid/ipInfo.htm.