A unicast message is a message directed to a specific device on a network (just one specific device). It would have a destination IP address that corresponds to that device.
unicast
The difference is in the IP range. The multicast IP range is 224.0.0.0 - 239.255.255.255
specific hosta specific host
Unicast transmission is a commonly used term in the technology world. Unicast transmission is essentially the sending of messages to a single network destination, which is identified by an address.
Host/destination address
MAC and IP addresses that correspond to a destination host. Remember, Unicast is singular.
The concept of dedicated as opposed to shared Internet Protocol (IP) hosting is very popular. The major feature of this service is that there is a dedicated IP address for one hosting account.
IPv4 1) Header (20-60 bytes). 2) Routed Protocol. 3) Types of address: i) Unicast ii) Multicast iii) Broadcast (limited/Direct) 4) 32-bit address. 5) Address space is 2^32. 6) Format of address : Decimal dotted. 7) IP security support is optional. IPv6 1) Header is fixed (20 bytes). 2) ICMP6, IP 3) Types of address: i) Unicast ii) Multicast iii) Anycast 4) 128-bit address. 5) Address space is 2^128. 6) Format of address : colon hex notation. 7) IP security support is built in.
ARP stands for Address Resolution Protocol. This is IP's way of requesting a MAC address (or hardware address) from a host located at a certain IP address. In order for a host on a network to send a unicast packet across the network, it must know both the source and destination MAC addresses. ARP is used to obtain a MAC address similar to the way DNS is used to obtain an IP address from a domain name (www.anydomain.com).
Stateless address autoconfig
1) Header is fixed (20 bytes). 2) ICMP6, IP 3) Types of address: i) Unicast ii) Multicast iii) Anycast 4) 128-bit address. 5) Address space is 2^128. 6) Format of address : colon hex notation. 7) IPsecurity support is built in.
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