Search results
Results From The WOW.Com Content Network
Network address translation between a private network and the Internet. Network address translation (NAT) is a method of mapping an IP address space into another by modifying network address information in the IP header of packets while they are in transit across a traffic routing device. [1]
NAT traversal with SBC during user registration. Similar to the registration case, the SBC will also include itself in the path of INVITE and other request messages. When receiving an INVITE from a user agent behind a NAT, the SBC will include a via header with its own address, replace the information in the contact header with its own address and also replace the address information in the ...
8 EGP Exterior Gateway Protocol: RFC 888: 0x09 9 IGP Interior gateway protocol (any private interior gateway, for example Cisco's IGRP) 0x0A 10 BBN-RCC-MON BBN RCC Monitoring 0x0B 11 NVP-II Network Voice Protocol: RFC 741: 0x0C 12 PUP Xerox PUP: 0x0D 13 ARGUS ARGUS 0x0E 14 EMCON EMCON 0x0F 15 XNET Cross Net Debugger IEN 158 [2] 0x10 16 CHAOS ...
Some large / 8 blocks of IPv4 addresses, the former Class A network blocks, are assigned in whole to single organizations or related groups of organizations, either by the Internet Corporation for Assigned Names and Numbers (ICANN), through the Internet Assigned Numbers Authority (IANA), or a regional Internet registry.
In Windows XP, NAT traversal is enabled by default, but in Windows XP with Service Pack 2 it has been disabled by default for the case when the VPN server is also behind a NAT device, because of a rare and controversial security issue. [6] IPsec NAT-T patches are also available for Windows 2000, Windows NT and Windows 98. [citation needed]
In this example, a value of 1 indicates Ethernet. Protocol Type (PTYPE): 16 bits This field specifies the internetwork protocol for which the ARP request is intended. For IPv4, this has the value 0x0800. The permitted PTYPE values share a numbering space with those for EtherType. [1] [2] Hardware Length (HLEN): 8 bits
Carrier-grade NAT. Carrier-grade NAT (CGN or CGNAT), also known as large-scale NAT (LSN), is a type of network address translation (NAT) used by ISPs in IPv4 network design. With CGNAT, end sites, in particular residential networks, are configured with private network addresses that are translated to public IPv4 addresses by middlebox network address translator devices embedded in the network ...
The NAT uses the port preservation allocation scheme: the NAT maps the source port of the internal peer to the same public port. In this case, port prediction is trivial, and the peers simply have to exchange the port to which they are bound through another communication channel (such as UDP, or DHT [ clarification needed ] ) before making the ...