The institution of slavery persisted for a long time in a number of colonies and dependencies. It was particularly widespread in Portugalâs African colonies as part of the plantation economy and as a household institution.
Network Address Translation (NAT) is an IETF standard that enables a local area network (LAN) to use one set of IP addresses for internal traffic and a second set of addresses for external traffic. All necessary IP address translations occur where the LAN interfaces with the broader Internet. NAT converts the packet headers (and in some cases the port numbers in the headers) for incoming and outgoing traffic and keeps track of each session.
NAT traversal. Network address translator traversal is a computer networking technique of establishing and maintaining Internet protocol connections across gateways that implement network address translation (NAT). NAT breaks the principle of end-to-end connectivity originally envisioned in the design of the Internet. NAT traversal techniques are required for many network applications, such as peer-to-peer file sharing and Voice over IP.