Check your gateway to see whether you can change the range there, if you want or need to keep this setting.
In the TCP/IP pane, if the setting for Configure IPv4 is Manually, the address was entered by hand.
#Why my antivirus is showing four mac/address for my pc mac
To check whether you (or someone else) configured your Mac this way in the past and simply forgot about it, open the Network preference pane, select your network adapter in the list at the left, and then click Advanced in the lower-right corner. 1 addresses are usually reserved, so you may have to start in this example at 192.168.1.2.) NAT will still work and DHCP isn’t involved. Others let you set the start of an IP range. Many gateways let you set aside specific addresses (sometimes called “DHCP reservations”) to avoid re-using an IP on the network. You might have, say, set your computer’s address to be 192.168.1.100. Here’s several methods to solve the address-in-use problem.įor instance, you might be running a game server or want to screen share with your computer remotely, have read up on port mapping or UPnP (Universal Plug ’n’ Play), and configured your machine to have a fixed (or “static”) private address so that it could always be reachable via some router magic.
Instead, your device is set by default to send out a query to the gateway over DHCP the gateway receives it, the NAT system finds an available address and keeps a record of it, and the DHCP server provides that address and other settings to your hardware, which is called a “lease.” You’ll note that when you connect to a Wi-Fi network or plug in via ethernet on your network (and on most networks), you aren’t asked to configure IP settings. Most routers pair NAT with DHCP (Dynamic Host Configuration Protocol), which automatically assigns addresses to devices when asked. It’s a tricky process, but it’s used for trillions of data packets a day globally (maybe quadrillions). Outgoing traffic is managed by the router so that incoming responses are passed back to the right computer or other hardware on the LAN. While most IP addresses have to be unique, because they’re all used in a big public pool-like having a unique street address in a unique city in a unique state or province-the NAT protocol allows for private addresses that are passed through gateway that maps the private address onto a shared public one. Network Address Translation (NAT) was created as a way to offer LAN-connected devices something special while preserving the pool of addresses available.
0 kommentar(er)
