linksys nat

I. NAT/ALG Mode Normal Nat implements address translation by modifying the UDP or TCP packet header address information. However, for VoIP applications, address information must also be included in the TCP/UDP net load, ALG Mode means that the VoIP Terminal in the private network fills in the private network address in the Net Load. The address information is changed to the external address on the

1. There are four Nat models for the SIP protocol.A) Full cone full coneB) Restricted cone of restricted coneC) Restricted cone of port restricted portD) symmetric ricA, B, and C are also called asymmetric Nat. 2. If the SIP terminal is behind Nat, problems may occur in its work. The reason is that the path of the sip signaling is different from that of the media

NAT Basic Description:Network Address translation (Nat,network addressing translation) is an Access wide area network (WAN) technology. is a conversion technology that converts a private (reserved) address into a legitimate IP address, which is widely used in various types of Internet access and various types of networks. The reason is very easy,nat not only perf

Labels: TCPIP Basic Introduction to Nat: NAT (Network Address Translation) is a WAN technology used to convert private (retained) addresses into valid IP addresses, it is widely used in various types of Internet access methods and networks. The reason is simple. Nat not only perfectly solves the problem of insufficient LP addresses, but also effectively avoids at

Set up a NAT test environment on VMWare Workstation 1. What is Nat (napt type ): To address the shortage of IP addresses, the concept of NAT is introduced. All Intranet devices access the Internet through a unified Internet address and different ports, however, because the Internet device does not know the specific Internet IP address of the Intranet device and

P2P Nat ResearchPart 1: Nat IntroductionPart 2: Nat type detection Part 1: Nat Introduction Various types of NAT (according to RFC) Full cone NAT: The Intranet host establishes a UDP socket (localip: localport). When the socket

1.Dynamic NAT (Dynamic NAT , dynamic one-to-one) Example one:Traditional configuration methods:Nat (Inside) 1 10.1.1.0 255.255.255.0Global (Outside) 1 202.100.1.100-202.100.1.200New Configuration method (Network Object NAT)Object Network Outside-nat-poolRange 202.100.1.100 202.100.1.200Object Network Inside-networkSubn

1 IntroductionVoIP is the most representative of the development of the new generation of Internet age.One of the application technologies. As a signaling control protocol in VoIPThere is great potential for growth. Therefore, in order to better promote the development of VoIP servicesIt will be a major research topic to solve the problem of SIP traversing NAT. This article mainlyBased on the stun method, it aims at its inability to traverse symmetric

This section is mainly to analyze the NAT module-related hook function and target function, mainly to clarify the principle of NAT module implementation. 1.NAT-related hook function analysis NAT module is mainly in the nf_ip_prerouting, nf_ip_postrouting, Nf_ip_local_out, nf_ip_local_in four nodes on the

NatTypes and detection methods The stun protocol is a client/server protocol. A large number of stun servers exist on the public network. You can run the stun client on your host to remotely connect to the stun server to confirm your network conditions. The network of the client host can be divided into the following types: 1. Opened:That is, the host has a public IP address and does not have a firewall, so it can freely communicate with the outside. 2, full cone NAT:There is a