| Publisher | Cable Television Laboratories | ||
|---|---|---|---|
| Format | 198.1KB PDF | Date added | 13 Oct 2006 |
| Topics | Firewalls, Network Security, Security Tools | ||
| Downloads | 63 | ||
Due to the rapid growth of low-cost, Network-enabled devices, high-speed data service subscribers frequently install IP routers and Ethernet hubs in their home so that they can connect multiple devices to the broadband network. Frequently, these devices contain IP Network Address and Port Translation (NA(P)T) and Firewall capabilities. While NATs and Firewalls provide numerous benefits to the customer, they also create numerous challenges for service providers seeking to offer seamless communication services to applications located behind the customer's NAT/Firewall device. NATs translate IP addresses between one IP address "realm" and another. This mapping is most commonly done between a private Internet address space and a public Internet address space and is created when an outbound packet is sent (from "Inside" to "Outside" the NAT/Firewall device).
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