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  • #4108510

    public ip addresses


    by thetechman2014 ·


    Hi, correct if I’m
    wrong but on a home network with just a few pcs and laptop that uses a small router/ modem there is usually one public Ip address and the router split/shares the internet and acts like a DHCP server and assigns private Ip addresses to all the devices. On a large corporate network, one that spans to several building or across a city, etc. does it work that same way. One public Ip address and several private Ip addresses or do they usually have several public Ip addresses.

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    • #4108621
      Avatar photo

      Re: public IP-address

      by kees_b ·

      In reply to public ip addresses

      A physical connection (cable, ADSL, glass fiber, satellite) to the internet provider needs a unique IP-address. That’s the only restriction.

    • #4133415

      public ip addresses

      by albertmjony ·

      In reply to public ip addresses

      Public IP addresses are provided by Internet Service Providers (ISPs) to their customers and are used to identify and distinguish devices on the global Internet. They are unique to each device or network and serve as the address that other devices use to locate and communicate with them. Public IP addresses are essential for devices that need to directly interact with the Internet, such as web servers, email servers, and gaming consoles.

    • #4191633

      Reply To: public ip addresses

      by rvacleanair ·

      In reply to public ip addresses

      In a large corporate network, the setup is typically more complex than a small home network. In such environments, there are often multiple public IP addresses involved. The basic concept of using private IP addresses internally and a public IP address for external communication still applies, but the scale and requirements of a corporate network necessitate some differences.

      Here’s a simplified breakdown:

      Private IP Addresses for Internal Devices: Like in a home network, devices within the corporate network are assigned private IP addresses. This helps with internal communication and allows many devices to share a single public IP address.

      Network Address Translation (NAT): To connect to the internet, the corporate network uses a device (usually a router or firewall) that performs Network Address Translation (NAT). This device has at least one public IP address assigned by the Internet Service Provider (ISP). It maps multiple internal private IP addresses to its single public IP address when communicating with external servers on the internet.

      Multiple Public IP Addresses: In larger corporate networks, especially those spanning multiple buildings or locations, there might be multiple public IP addresses. This could be due to the need for redundancy, load balancing, or accommodating a large number of simultaneous connections.

      Firewalls and Security Devices: Corporate networks often have sophisticated firewall systems and other security devices to monitor and control traffic between the internal network and the internet. These devices play a crucial role in protecting the network from external threats.

      In summary, while the basic principle of using private IP addresses internally and a public IP address for external communication remains, the complexity of large corporate networks often requires more sophisticated setups, including multiple public IP addresses and advanced network infrastructure.

      • This reply was modified 6 months, 2 weeks ago by Avatar photokees_b.
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