The festival of Diwali is being celebrated by millions of Hindus, Sikhs and Jains this week. Click to follow. The Independent Online. One of the most significant festivals in Indian culture, Diwali, the festival of lights, sees millions attend firework displays, prayers and celebratory events across the world every autumn.
From Wikipedia, the free encyclopedia. In computing, a stateful firewall (any firewall that performs stateful packet inspection (SPI) or stateful inspection) is a firewall that keeps track of the state of network connections (such as TCP streams, UDP communication) traveling across it. stateful firewall keeps track of the state of network connections (such as TCP streams or UDP communication) and is able to hold significant attributes of each connection in memory.
It is very hard to tell how the SPI is implemented in yor specific router model, but most home routers' SPI (standard cheap models up to few 100$) will act as a state table with IP and port numbers.The numbers are kept for a certain amount of time and inbound packets are allowed based on what has been requested. router 'firewall' (NAT or otherwise) will provide basic protection, and is usually much more stable than a software firewall. Software firewalls can malfunction, or be disabled. Software firewalls in addition to a router can provide useful additional protection, especially regarding outbound connections.