$1.$ Subnet the $192\mathrm{.}168\mathrm{.}0\mathrm{.}0/23$ network into $3$ smaller networks that meet the following criteria. Use VLSM to waste as few IPs as possible.

a$.$ VLAN $20($Blue$)$:

$50$ hosts Gateway is assigned the first available IP PC$3$ is assigned the second available IP b$.$ VLAN $40($Red$)$: $110$ hosts Gateway is assigned the first available IP PC$2$ is assigned the second available IP c$.$ VLAN $60($Purple$)$: $200$ hosts Gateway is assigned the first available IP PC$1$ is assigned the second available IP PC$4$ is assigned the last available IP Switch$\_$A Configuration Instructions$1.$ Apply the following configuration to Switch$\_$A: Switch$\_$A $($config$)$# no ip domain$-$lookup Switch$\_$A $($config$)$# hostname Switch$\_$A Switch$\_$A $($config$)$# service password$-$encryption Switch$\_$A $($config$)$# banner motd #No unauthorized access!#$2.$ Configure the following VLANS with their respective names.VLAN IDVLAN NAME$10$Management$60$Purple$80$Voice$100$Misc$200$Native $3.$ Create an SVI for VLAN $100$ using the IPv$4$ address show in the topology$4.$ Set interface fa$0/1$ as an access port that is assigned to VLAN $10($Management$)$ using the following commands:Switch$\_$A $($config$)$# interface fa$0/1$Switch$\_$A$($config$-$if$)$# switchport mode accessSwitch$\_$A$($config$-$if$)$# switchport access vlan $105.$ Set all interfaces connected to hosts as access ports and assign them to their respective VLANs in accordance with the topology. $*$Do not forget the voice VLAN on interface fa$0/4*6.$ Set interface fa$0/24$ as port that will dynamically configure itself as a trunk $($DTP$)$ using the following commands:Switch$\_$A $($config$)$# interface fa$0/24$Switch$\_$A$($config$-$if$)$# switchport mode dynamic auto$7.$ Configure interface fa$0/24$ to use VLAN $100$ as the native VLAN using the following command:Switch$\_$A $($config$)$# interface fa$0/24$Switch$\_$A$($config$-$if$)$# switchport trunk native vlan $1008.$ Configure interface fa$0/24$ to allow VLANs $10,20,40,60,80,$ and $100$ across the trunk using the following commands:Switch$\_$A $($config$)$# interface fa$0/24$Switch$\_$A$($config$-$if$)$# switchport trunk allowed vlan $10,20,40,60,80,1009.$ Set all unused interfaces as access ports assigned to VLAN $200($Misc$)10.$ Shutdown all unused interfaces and apply a description that says Unused. Moved to Misc VLAN$11.$ Verify there are no interfaces left in VLAN $1$ using the following command:Switch$\_$A# show vlan brief$12.$ Create a user account that has maximum privileges and uses the username Cisco and password Cisco$12313.$ Configure SSH access$\mathrm{.}1.$ Use cisco.com as your domain name$2.$ Enable SSH version $23.$ Use a $2048$ bit modulus$4.$ Enable on all vty lines$5.$ Set vty access to require a local user account be utilized for login Switch$\_$B Configuration Instructions$1.$ Apply the following configuration to Switch$\_$B: Switch$\_$B $($config$)$# no ip domain$-$lookup Switch$\_$B $($config$)$# hostname Switch$\_$B Switch$\_$B $($config$)$# service password$-$encryption Switch$\_$B $($config$)$# banner motd #No unauthorized access!#$2.$ Configure the following VLANS with their respective names.VLAN IDVLAN NAME$10$Management$20$Red$40$Blue$60$Purple$80$Voice$100$Misc$200$Native $3.$ Create an SVI for VLAN $100$ using the IPv$4$ address show in the topology$4.$ Set all interfaces connected to hosts as access ports and assign them to their respective VLANs in accordance with the topology$\mathrm{.}5.$ Set interface fa$0/24$ as port that will dynamically configure itself as a trunk $($DTP$)$ using the following commands:Switch$\_$B $($config$)$# interface fa$0/24$Switch$\_$B$($config$-$if$)$# switchport mode dynamic desirable$6.$ Configure interface fa$0/24$ to use VLAN $100$ as the native VLAN$7.$ Configure interface fa$0/24$ to allow VLANs $10,20,40,60,80,$ and $100$ across the trunk$8.$ Statically configure interface fa$0/1$as a trunk and disable DTP using the following commands:Switch$\_$B$($config$-$if$)$# interface fa$0/1$Switch$\_$B$($config$-$if$)$# switchport mode trunkSwitch$\_$B$($config$-$if$)$# switchport nonegotiate$9.$ Configure interface fa$0/1$ use VLAN $100$ as the native VLAN$10.$ Configure interface fa$0/1$ to allow VLANs $10,20,40,60,80,$ and $100$ across the trunk$11.$ Set all interfaces connected to hosts as access ports and assign them to their respective VLANs in accordance with the topology$\mathrm{.}12.$ Set all unused interfaces as access ports assigned to VLAN $200($Misc$)13.$ Shutdown all unused interfaces and apply a description that says Unused. Moved to Misc VLAN$14.$ Verify there are no interfaces left in VLAN $115.$ Create a user account that has maximum privileges and uses the username Cisco and password Cisco$12316.$ Configure SSH access$\mathrm{.}1.$ Use cisco.com as your domain name$2.$ Enable SSH version $23.$ Use a $2048$ bit modulus$4.$ Enable on all vty lines$5.$ Set vty access to require a local user account be utilized for login Router Configuration Instructions $($Router$-$on$-$a$-$Stick Inter$-$VLAN Routing$)$Router$-$on$-$a$-$Stick is a method to accomplish inter$-$VLAN routing. As VLANs are on separate networks, they require a routing device to utilize its routing table to direct the packets between the VLANs. Because multiple VLANs are attached to one physical interface on the router, it is necessary to create virtual sub$-$interfaces on that physical interface. These sub$-$interfaces are then assigned IPs for their respective networks $($corresponding to VLANs$),$ which will be the default gateway for each network$/$VLAN$.$ In order for the router to utilize the IEEE $802\mathrm{.}1$Q encapsulation protocol and recognize the VLAN ID tagging, the command encapsulation dot$1$q $[$VLAN ID$]$ command will need to be ran on each sub$-$interface respectively$\mathrm{.}1.$ Apply the following configuration to Router$\_$Alpha: Router$\_$Alpha$($config$)$# no ip domain$-$lookup Router$\_$Alpha$($config$)$# hostname Router$\_$Alpha Router$\_$Alpha$($config$)$# service password$-$encryption Router$\_$Alpha$($config$)$# banner motd #No unauthorized access!#$2.$ Configure a sub$-$interface on gi$0/1$ to be the VLAN $10($Management$)$ network gateway using the following commands:Router$\_$Alpha$($config$)$# interface g$0/1\mathrm{.}10$Router$\_$Alpha$($config$-$if$)$# encapsulation dot$1$q $10$Router$\_$Alpha$($config$-$if$)$# ip address $172\mathrm{.}16\mathrm{.}10\mathrm{.}1255\mathrm{.}255\mathrm{.}255\mathrm{.}03.$ Configure the following sub$-$interfaces and assign the appropriate IPv$4$ gateway addresses:Sub$-$InterfaceIPv$4$ Address & Subnet MaskGi$0/1\mathrm{.}20$Use IP Scheme InstructionsGi$0/1\mathrm{.}40$Use IP Scheme InstructionsGi$0/1\mathrm{.}60$Use IP Scheme InstructionsGi$0/1\mathrm{.}80172\mathrm{.}16\mathrm{.}80\mathrm{.}1255\mathrm{.}255\mathrm{.}255\mathrm{.}0$ Host Configuration Instructions$1.$ Apply IPv$4$ addresses to all PCs according to the IP Scheme Instructions$2.$ Apply IPv$4$ default gateway addresses to all PCs according to the IP Scheme InstructionsConnectivity Tests $4.$ Verify that PC$0$ can successfully log into Switch$\_$A via SSH$5.$ Verify that PC$0$ can successfully log into Switch$\_$B via SSH$6.$ Verify that all PCs can ping their respective gateways$7.$ Verify that all PCs can ping each other