Your external IP isn't used on the lan. Everything has its own internal IP and forwards their traffic onto the gateway which then strips off the internal ip and replaces it with the external ip. Then when the requested traffic comes back, the gateway forwards it back to the internal ip that requested it.
internal ip is ur lan ip external ip is ip of wan that is provided by isp
IP
The administrator can set up a Local Area Network (LAN) behind a firewall in which he can assign whatever IP address block he wishes. The firewall and router will then need to be configured to Network Address Translate (NAT) the 'hidden' internal IP addresses used on the LAN to the one assigned by the ISP when network traffic needs to leave the LAN.
LAN worlds are available only to people who are on your local network. They have to actually be connected to your network, for the LAN IP to make sense.
Network Address Translation (NAT) became helpful when IPv4 was running out of IP addresses to give. Using NAT in a Local Area Network (LAN) allows you to have one IP address given to you by your ISP (207.68.35.18 for example) which would be your WAN or Outside IP Address. If you needed to access a server inside your LAN when you are not connected to your LAN, using NAT would allow you to set up an IP address for that server and allow you to remotely use that server outside your LAN.
An IP address must be unique within a LAN; the combination of the network and host portion must present a number that is not duplicated anywhere else in the network. Outside of a LAN the IP addresses do not have to be unique, except that the network id portion can only be used by the organization that owns the IP network address. The host portion does not need to be unique across all LANs within an enterprise network.
Because without an IP address a device cannot communicate on a network. Within a LAN, an IP address must be unique.
All IPv4 IP addresses can be divided into two major groups: global, or public, or external - this group can also be called 'WAN addresses' — those that are used in the Internet, and private, or local, or internal addresses — those that are used in the local network (LAN).
To function on a LAN, the user needs:An IP addressA subnet maskThese settings are required to participate on an LAN segment. If you want to get packets outside of your LAN you will need to add the default gateway address, and if you want to use names instead of IP addresses to get anywhere you will also need the DNS server address(es).
The effect of not having a working IP address is that you will not be able to connect over the network. All devices that want to communicate over an Ethernet based network (LAN or WAN) needs to have an IP address.
1) connect the ip phone to the ethernet LAN using an rj45 connector 2) establish an internet connection then use an analog telephone adapter.
It looks like you have a network with static ip addresses. You have set up manually an ip address for your network adapter. Just go in the properties of the adapter and put an ip address from the same subnet as other users are using in the network.