International Journal Of Computer Architecture And Mobility
The firewall is defined as a set of components that restricts an access between a protected network & an unprotected network. Problem with firewall are it does not provide full protection against virus, prevention against previously unknown attack type and protection against insider/connection that do not go through it. A firewall provides a basic, but critical level of security for an embedded device, allowing it to block unwanted packets. In the proposed paper of \"Firewall as a portable embedded system\", firewall is designed as a portable & multiple platform supported device.