Differ b/w DHCP & Static IP | Determine you external IP | Which IP is best | Types of IP Address.

IP Address

DHCP and Static IP.
             A Static IP address is a dedicated IP address that has been assigned to you.
DHCP or Dynamic is an IP address that will automatically be chosen for you from a pool of IP addresses that are assigned in the DHCP scope available on your network.
Think Static as permanent and DHCP as temporary.
Determine external IP address Static or Dynamic.
1- Restart your router.
2- Check your external IP address again and compare it. If it has changed, you have a dynamic external IP address. If it has not changed, you may have a static IP address.
Which IP is best?
           Yes, static IP addresses don't change. Most IP addresses assigned today by Internet Service Providers are dynamic IP addresses. It's more cost effective for the ISP and you. For most of us, we simply need a reliable connection and our Internet Service Providers deliver a Dynamic IP address to us.
Types of IP Addresses.
            There are three types of IP Addresses.
Unicast IP Addresses.
             An address of a single interface. The IP addresses of this type are used for one-to-one communication.
Multicast IP Addresses.
            It is used for one-to-many communication. ...
Broadcast IP Addresses.
            It is used to send data to all possible destinations in the broadcast domain (the one-to-everybody communication).
Classes of IP.
           With an IPv4 IP address, there are five classes of available IP ranges: Class A, Class B, Class C, Class D and Class E, while only A, B, and C are commonly used. Each class allows for a range of valid IP addresses, shown in the following table. Supports 16 million hosts on each of 127 networks.
IP and types of IP.
          'IP' stands for 'Internet Protocol'. There are two versions of IP that currently coexist in the global Internet: IP version 4 (IPv4) and IP version 6 (IPv6). IP addresses are made up of binary values and drive the routing of all data over the Internet.
IPv4 addresses are 32 bits long.
IPv6 addresses 128 bits long.