Vodafone Wireless Modem - look at the Vodafone wireless modem user guide. Port forwarding allows you to define the ports to be enabled to allow/block those applications. Some internet applications may require a special configuration on the ports for network access. Vodafone Wireless Modem - look at section 5 of the Vodafone wireless modem user guide. Please note: This will only restrict keywords in the URL of the webpage, not the content of the webpage itself In reverse, if you set it to Allow, only websites with the specific keywords you set will be accessible. you enter 'greenpants' as a keyword then will be blocked. If a web address (URL) features a keyword then it will be blocked i.e. This filter is based on keywords you enter. UltraHub modem - Set up Parental controls Vodafone Station modem - look at section 4.10 of the Vodafone Station User Manual (PDF). Vodafone wireless modem (HG659) - look at section 5 of the Vodafone wireless modem guide (PDF) For example you may want to block a games console, such as a PlayStation or Xbox from accessing the Internet during exams. Parental Controls allow you to restrict a specific computer or device's internet access at certain times of the day.