IPv4 to IPv6 and IPv4 to IPv

IPv6 representation.

IPv6 addresses are represented in hexadecimal format. The 128-bit is divided into 8 groups of 16 bits each, which are represented by 4 hexadecimal numbers and used between groups"："The first 0 in each group can be omitted, but each group must have a number.

1. Hypocentristic hexadecimal notation.

The format is x:x:x:x:x:x:x:x, where each x represents 16 bits, displayed in hexadecimal, as shown below

IP 1: ABCD: EF01:2345:6789: ABCD: EF01:2345:6789

IP two: fedc:ba98:7654:3210:fedc:ba98:7654:3210

IP three: 1080:0:0:0:8:800:200c:417a

Bit-compressed notation.

In some cases, an IPv6 address may contain a long 0, and a continuous 0 can be compressed into "::, but to ensure the uniqueness of the address resolution, ":: in the address can only appear once, for example:

1080:0:0:0:8:800:200c:417a =1080::8:800:200c:417a

ff01:0:0:0:0:0:0:101=ff01::101

ff01:0:0:0:0:0:0:1101 = ff01::1101

In order to achieve IPv4-IPv6 interworking, IPv4 addresses will be embedded in IPv6 addresses, and the addresses are often expressed as: , that is, the first 6 groups are represented by the hexadecimal system, the last two groups are represented by the decimal system, and the last 32-bit address is represented by the dotted decimal system of IPv4, for example: AND is a typical example.

Part 4: How do I convert IPv4 to IPv6 address?

As we mentioned above, in order for an IPv4 address to communicate with an IPv6 address, you need to convert IPv4 to an IPv6 address.

1. Non-standard conversion:

It is only necessary to add 0 to the first 6 groups of 96 bits in front of the IP address, that is.

That is: embedded IPv4 notation).

2. Standard conversion.

According to the hexadecimal system, the string address is still 8 bits, so two sets of v4 addresses need to be combined into v6 addresses, and then the first 96 bits are zeroed, which can be converted to.

0000:0000:0000:0000:0000:0000:874b:2b34 or 874b:2b34.

To addend: How does decimal translate to hexadecimal?

Here it is necessary to add how to convert decimal to hexadecimal, which may often be used in the IPv6 era.

<> hexadecimal is represented by a, b, c, d, e, and f.

So the decimal system ends up in hexadecimal, which translates to IPv6 and is: 874b:2b34. Of course, it can also be directly converted through the tool.

IPv4 is not possible to upgrade IPv6.

Cause: IPv4 and IPv6 do not need to be translated because in order to enable IPv4 IPv6 interoperability, the IPv4 address is embedded in the IPv6 address, which is usually represented as: x:

x：x：x：

x：x：x：

x：x：x：

x：x：x：

x：x：x：

x：x：x：x：d．d．d．d。The first 96b is represented in hexadecimal and the last 32b is represented by spot decimalipv4. Calculation: Directly intercept the last 32b of IPv6 as IPv4.

IPv6 upgrade is not just a casual set-up, it involves a lot of technical and network security issues, or to use professional technology, now there are many companies can do IPv6 upgrade, like urban hotspots, you can go to understand.

Summary. Hello, you can receive packets on any of its interfaces, and send the packets out through different interfaces to send them to their destinations. Packets can either enter the router from that interface and leave the router from that interface.

When the router receives an IP datagram, it first evaluates the packet, and then processes it further based on the judgment result. If the datagram is invalid or incorrect, the router will drop the packet, otherwise the router will use the datagram's destination IP address to ** the packet.

IPv4 Principle: The physical process of IP packet ** (the whole process of sending packets from A to B) is the principle of IPv+4 to IPv+6 conversion.

Hello, you can receive the packet on any of its interfaces, and send the packets out through different interfaces, and send them to the destination. Packets can either enter or leave the Chinna router from this interface. When the router receives an IP datagram, it first evaluates the packet, and then proceeds to further process the packet based on the judgment result.

If the datagram is invalid or incorrect, the router will drop the packet, otherwise the router will use the datagram's destination IP address to ** the packet. IPv4 principle: The physical process of IP packet (the whole process of sending packets from A to B).

Have a great day! Thank you.

The main IPv4 IPv6 transition technologies include:

tunneling: Encapsulates IPv6 packets in IPv4 hail dust packets, transmits them over the IPv4 network, and decapsulates them at the endpoint.

translation: Converts the protocol source hall format at the network boundary so that IPv4 and IPv6 hosts can communicate between incompatible networks.

Dual Stack: Enable both the IPv4 and IPv6 stacks on the host or router and communicate using both.

This one is easy to solve.

The following is an example of IPv4.

The simplest compatible address is.

I guess what you're asking is how to write it below.

c0a8:00c7

We know that IPv4 addresses are 32-bit binary and are represented in dotted decimal.

The IPv6 address is a 128-bit binary, usually with 8 hexadecimal numbers to indicate that you want to write a compatible IPv6 address. All you need to do is convert the 32-bit IPv4 address to hexadecimal format.

That is to say, the first 96 bits are all 0, and the last 32 bits can be represented by IPv4 addresses.

It means that it is all zero.

c0 is the hexadecimal spelling of 192 and a8 is the hexadecimal spelling of 168.

IPv4 addresses are represented by dots between each group. IPv6 is indicated by a colon.

Hope you understand.