Task $1$: Configuring Router A

Before starting to program, notice that you need to select the router A for this part $($and Router B and Router C for next parts$).$ A square box will show up around Router A name. Also click on figure to show the IP addresses for Router A$.$

Configure the three Ethernet interfaces and two Serial interfaces on Router A as follows:

For interface Ethernet$0$ wyith address $10\mathrm{.}10\mathrm{.}20\mathrm{.}250,255\mathrm{.}255\mathrm{.}255\mathrm{.}0$

For interface Ethernet$1$ with address $10\mathrm{.}10\mathrm{.}200\mathrm{.}1,255\mathrm{.}255\mathrm{.}255\mathrm{.}0$

For interface Ethernet$2$ with address $10\mathrm{.}10\mathrm{.}100\mathrm{.}1,255\mathrm{.}255\mathrm{.}255\mathrm{.}0$

For interface S$0$ with address $10\mathrm{.}10\mathrm{.}128\mathrm{.}1255\mathrm{.}255\mathrm{.}255\mathrm{.}0$

For interface S$1$ with address $10\mathrm{.}10\mathrm{.}64\mathrm{.}1255\mathrm{.}255\mathrm{.}255\mathrm{.}0$

Prove your configuration is complete and successful. Include screen capture.