Day 18 - Basic Router Configuration Flashcards
For R1, perform the following tasks:
- Give the Router a Hostname
- Set a global enable secret
- Set a username and password users will use to remote in via SSH
- Set the password for the Console port
- Set the VTY lines for SSH
- Configure a banner message
- Configure Gi0/0 for IP address 192.168.1.1 with a subnet mask of /24 and set a description on the port
- Ensure R1 can reach 192.168.3.0 through a static route (the serial int IP address on R2 is 192.168.2.2)
- Verify the config
- Verify the routes have made it into the routing table
- Verify the interfaces are IP’d correctly
- Verify the interfaces with a global show command
- Save the changes to the startup config
hostname R1
enable secret cisco
username admin password cisco
line con 0
password cisco
login
line vty 0 15
transport input ssh
login local
banner motd # message #
int gi0/0
ip address 192.168.1.1 255.255.255.0
no shutdown
description Link to SW1
ip route 192.168.3.0 255.255.255.0 192.168.2.2
show running-config
show ip route
show ip int brief
show interfaces
copy run start
What command would you use to encrypt all plaintext passwords on a router or switch?
service password-encryption
Solve for the interface status code scenario:
Refers to the layer 1 status. For example, is the cable installed? Is it the right, wrong cable? Is the device on the other end powered on?
What are some things you might see here?
Line status
administratively down
up
down
Solve for the interface status code scenario:
Refers generally to the layer 2 status. It is always down if the line status is down. If the line status is up, this type of status of down is usually caused by mismatched data link layer configuration
What are some things you see here?
Protocol status
down
up
Solve for definition of interface status code:
The interface has a shutdown command configured on it
Administratively down / down
Solve for definition of interface status code:
The interface has a no shutdown command configured, but the physical layer has an issue. For example, no cable has been attached to the interface, the switch interface on the other end of the cable is shut down or the switch is powered off
down/down
Solve for definition of interface status code:
This almost always refers to data link layer problems, most often configuration problems. For example, serial links have this combination when one router configured to use PPP and the other defaults to use HDLC
up/down
Solve for definition of interface status code:
All is well and the interface is functioning
up/up
What granular command could you use to check a myriad of settings on an interface?
show interface {int}
What is the difference between the show interface {int} and show interface {int} switchport command
show interface {interface} provides general information about the interface while the second command show interface {interface} switchport provides specific details about the switchport configuration of the interface, especially on switches.
What command would you use to enable IPv6 routing?
ipv6 unicast-routing
This command configures the router to begin listening for and responding to Neighbor Discovery (ND) messages on all active IPv6 routers
ipv6 unicast-routing
What command would you use to configure an IPv6 address to use EUI-64? Use the global routing prefix and subnet ID of 2001:db8:acad:1::/64 to achieve this
ipv6 address 2001:db8:acad:1::/64 eui-64
What command would you use to configure an IPv6 global unicast address manually? Use the IPv6 address 2001:db8:acad:1:0:0:0:1
ipv6 address 2001:db8:acad:1::1/64
True or False:
It is generally good practice to manually configure the IPv6 link-local address?
True
