difference between ipv4 and ipv6

IPV6 is the abbreviation for "Internet Protocol version 6", which is the next generation IP protocol designed by the IETF to replace the current version of the IP protocol-ipv4-. At present we use second-generation Internet IPV4 technology, the core technology belongs to the United States. Its biggest problem is that the network address resources are limited, th

In fact, here IPv6 ACL (access-list) and IPv4 are very similar, all as a practice to verify the principle of it. 1, about the standard access list. Configuration is the case, and IPv4 is not much different, the difference is IPv4 in the interface is the use of IP access-

We all know the essential differences between IPv6 and IPv4 protocol networks. So what are the differences between the two in the two-way session communication process? The following describes the content in detail. The NAT-PT can only be used for applications that initiate a session by a terminal in the Ipv6 network, and the NAT-PT cannot be implemented if an ap

What is the difference between IPv4 and IPv6 service quality?This is an interesting question that people often ask. The two versions of the Protocol have no difference in terms of service quality. The only difference is that the header is slightly different. Therefore, you c

summed up the following points: 　　First, the ability to extend routing and addressing IPV6 the IP address from 32 to 128 bits to support a larger address space, estimating that there are 4*10^18 IPv6 addresses per square metre on the surface of the Earth, so that IP addresses will not run out in the foreseeable future. The IPV6 address is encoded with a hierar

The first one does not say Ha, 32bit directly upgraded to 128bit. From 2 to 32 to 2 of 128 times, every grain of sand on earth can be divided into one IP address. This is the most windy place in IPv6. In IPV6, routers cannot configure interfaces using automatic configuration mechanisms and must be manually configured. So, my understanding is that routers cannot use IP dhcp-address to do DHCP clients to

IPv6 to IPv4, PT64 must calculate the IP address checksum required by the IPv4 header. However, PT46 does not need to calculate the IPv6 checksum, because the IPv6 Header does not have this field. ICMPv6 and ICMPv4 are also different in the calculation of checksum. PT46 mus

Network Layer 2 (IPv4 and IPv6 addresses and related protocols) IP (internet protocol) protocol is the core protocol of the TCP/IP protocol family and the network layer of the internet. The current version number is 4, also known as IPv4. The next generation IP protocol version number is 6, that is, IPv6. As described

technology );· Protocol translation technology (NAT-PT ).1.1 dual-protocol stack technology [5] (Dual Stack, rfc2893)The host runs both IPv4 and IPv6 protocol stacks and supports both Protocols. IPv6 and IPv4 are network-layer protocols with similar functions. Both of them are based on the same physical platform and t

Original link http://www.ibm.com/developerworks/cn/linux/l-cn-ipv6env/ Build an IPv6 test environment on the Linux platform and IPv4 Environment Jiang yingyu , Software engineer, EMC Jiang Ying Yu, IBM software engineer, engaged in uxspi-related software R D and testing Yin yiming Yinym@cn.ibm.com ), Software engineer, EMC Yin yiming, IBM software engineer, engaged in uxspi-related software R D and Testin

with embedded address information such as FTP, The NAT-PT needs to work with the gateway at the application layer to complete the translation. The NAT-PT can be realized by using port information on the basis of the NAPT-PT, which has no essential difference with the NAPT under IPv4. The principle of NAT-PT is similar to that of SIIT. The improvement is to apply the NAT under the traditional

advantage makes IPv6. Automatic Configuration In IPv6, when the host is started, it checks the local network to see if other hosts use their own IP addresses. If the address is not used, query the local IPv6 router and request an IPv6 address from it. Then the host can be connected to the Internet-it has its own IP ad

1. Background knowledge With the continuous development of personal computers, mobile terminals and even the internet of things, there is a great demand for IP addresses. As the IPV4 protocol was designed without expecting that the network would be so developed in the future, the number of IP in the IPV4 network seemed to be stretched relative to today's demand. Add IPV