No. your global Ip will keep on changing until you will ask/buy a static ip for your connection.
Dont know about your area, but that is very easily possible by paying very nominal amount.
Кабель от моего провайдера подключен напрямую к моему компьютеру. Проблема в том, что у меня динамический IP-адрес, который меняется каждый раз, когда я отключаюсь и снова подключаюсь, иначе он не изменится сам, если я буду оставаться на связи. Мне было интересно, как я могу обойти проблему, если я куплю домашний маршрутизатор, сохранит ли он IP-адрес в случае перезапуска или отключения?
No. your global Ip will keep on changing until you will ask/buy a static ip for your connection.
Dont know about your area, but that is very easily possible by paying very nominal amount.
One option is to have a no-ip account. If you rely on having the same ip address or hostname you can usually set up an account with no-ip for free http://www.noip.com/
From your ISP's point of view the router is now the connected device. It will seem always on and the IP address assignment will behave as if you left you pc on all the time in your current setup.
If this will give you a stable IP address I cannot say. That depends on other configuration options at the ISP's end. I have seen ISPs that give you a stable address for months as long as you don't disconnect. I have also seen ISPs that change the address every day even if you stay connected.
As others have already suggested: if this is really important to you you should pay the ISP for a fixed address. If you just want your address to be a little bit more stable then a router will probably help.