The two main benefits of IPv6 over IPv4 are: Nevertheless, IPv6 becomes more important, as the date of unallocated IPv4 address pool's exhaustion approaches. It was initially expected to replace IPv4 in short enough time, but for now, it seems that these two versions will coexist on the Internet in foreseeable future. Internet Protocol version 6 (IPv6) is the newer version of the Internet Protocol (IP). 169.254.0.0/16 - auto-configuration address rangeĬonsider setup where two routers are directly connected with the cable and we do not want to waste address space:Īdd address=172.16.1.1/32 interface=ether1 network=10.1.1.1 IPv6 Addressing.203.0.113.0/24These addresses are not routed in the global routing table and should be translated to global address with network address translation (NAT): The following IP address ranges are reserved ( RFC 6890) for private addressing. The sender sends a single datagram from its unicast address to the multicast group address and the intermediary routers take care of making copies and sending them to all receivers that have joined the corresponding multicast group. In IPv4, addresses 224.0.0.0 through 239.255.255.255 are designated as multicast addresses. multicast - address associated with a group of interested receivers.For example, the destination address used for directed broadcast to devices on the 192.0.2.0/24 network is 192.0.2.255 In addition, a directed (limited) broadcast can be made by combining the network prefix with a host suffix composed entirely of binary 1s. In the IPv4 protocol, the address 255.255.255.255 is used for local broadcast. broadcast - address to send data to all possible destinations ("all-hosts broadcast"), which permits the sender to send the data only once, and all receivers receive a copy of it.Usually, a unicast address is associated with a single device or host, but it is not a one-to-one correspondence. unicast - normally refers to a single sender or a single receiver, and can be used for both sending and receiving.host address - any other address that is not network address and broadcast address can be used as a host address.
The broadcast address uses the highest address in the network range. broadcast address - a special address for each network that allows communication to all the hosts in that network.For example, we could refer to the network 192.168.1.0 or 172.16.0.0 as a “Network Address.” network address - a standard way to refer to an IPv4 address assigned to a network.IPv4 network consists of three addresses: Each octet is converted to a decimal format and separated by a dot. IPv4 uses 4-byte addresses which are segmented in four 8-bit fields called octets.
You can use /ip address print detail to see which interface the address belongs to. Configuring an IP address to a physical interface included in a bridge would mean actually setting it on the bridge interface itself. In the case of bridging or PPPoE connection, the physical interface may not have any address assigned, yet be perfectly usable. It is possible to add multiple IP addresses to an interface or to leave the interface without any addresses assigned to it. The network prefix and the broadcast address are calculated automatically. In most cases, it is enough to specify the address, the netmask, and the interface arguments. It's also possible to specify an IP address followed by a slash "/" and the number of bits that form the network address. The network address value is calculated by binary AND operation from a network mask and IP address values. For proper addressing the router also needs the network mask value, id est which bits of the complete IP address refer to the address of the host, and which - to the address of the network. Typical (IPv4) address consists of four octets. IP addresses serve for general host identification purposes in IP networks ( RFC 791).
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