Actually I needed something similar to what you needed and what I did was to contact Igor Escobar, the author of Jquery Mask Plugin. There is not a complete built in way to do it yet, so he directed me to one option this could be accomplished and here I share the result:.

HTML

<input type="text" id="networkSectionIpAddress" class="ip_address" >

Javascript:

var options =  { 
            onKeyPress: function(cep, event, currentField, options){
//            console.log('An key was pressed!:', cep, ' event: ', event,'currentField: ', currentField, ' options: ', options);
                if(cep){
                  var ipArray = cep.split(".");
                  var lastValue = ipArray[ipArray.length-1];
                  if(lastValue != "" && parseInt(lastValue) > 255){
                      ipArray[ipArray.length-1] =  '255';
                      var resultingValue = ipArray.join(".");
                      currentField.attr('value',resultingValue);
                  }
            }             
        }};
        
        $('.ip_address').mask("000.000.000.000", options);

I hope this information is helpful for those using this great JQuery Mask plugin :)

Actually I needed something similar to what you needed and what I did was to contact Igor Escobar, the author of Jquery Mask Plugin. There is not a complete built in way to do it yet, so he directed me to one option this could be accomplished and here I share the result:.

HTML

<input type="text" id="networkSectionIpAddress" class="ip_address" >

Javascript:

var options =  { 
            onKeyPress: function(cep, event, currentField, options){
//            console.log('An key was pressed!:', cep, ' event: ', event,'currentField: ', currentField, ' options: ', options);
                if(cep){
                  var ipArray = cep.split(".");
                  var lastValue = ipArray[ipArray.length-1];
                  if(lastValue != "" && parseInt(lastValue) > 255){
                      ipArray[ipArray.length-1] =  '255';
                      var resultingValue = ipArray.join(".");
                      currentField.attr('value',resultingValue);
                  }
            }             
        }};
        
        $('.ip_address').mask("000.000.000.000", options);

I hope this information is helpful for those using this great JQuery Mask plugin :)