Measureup Ccna

While configuring the interface, use the command i p nat inside.

While configuring the interface, use the command i p nat outside.

Create an access list that identifies the traffic that you want to use NAT to control.

From config mode, use the command i p access-list extended NAT, to call the access list NAT.

Use the command "50 permit i p 192.168.0.0 0.0.0.255 any" to start the access list sequence at 50 in case you want to put any exclusions in the access list later. This example would cause all traffic from the 192.0.0.0 network to flow through NAT.

You have to turn on the NAT inside interface with the command "i p nat inside source list NAT int g0/1 overload". That would enable the access list called NAT to become active on int g0/1.

Overload tells the router to use Port Address Translation, or PAT.

show i p nat statistics and show i p nat translations.

No, when using static NAT, everything is configured in the NAT statement.

i p nat inside source static 192.168.1.2 100.65.0.2. That would set up a permanent NAT from the I P address 192.168.1.2 that would always be translated to the address 100.65.0.2.

A pool of inside global I P addresses, also known as publicly routable addresses, is dynamically assigned one-to-one to ACL defined hosts in the network. As each inside host uses one of the available NAT I P addresses, it is no longer available for use.

Set an inside interface to use NAT with the commands int g0/1 followed by i p nat inside. Exit out of interface config and then use the command i p nat pool 1-pool 100.65.3.1. 100.65.3.255 netmask 255.255.255.0. All NAT addresses would be between 100.65.3.1 and 100.65.3.255.

Create an access list to use with that pool with the command i p access-list ext 1-nat to name it 1. Then create the I P address range with the command "50 permit ip 192.168.3.0 0.0.0.255 any"

Add the NAT statement to the inside interface from config mode with the command i p nat inside source list 1-nat pool 1-pool. This will use the access list named 1 and the dynamic pool named 1.

All log messages are timestamped, so you can see if there are discontinuities when reviewing log entries. You can then review them in chronological order.

From config mode, use the command clock timezone CST -6, for example. On the next line, tell the device to observe daylight savings time with the command clock summer-time CST recurring.

From Enable mode, set the local time with the command clock set 15:30:00 18 January 2021.

From enable mode, use the command show clock.

1) In client mode, the device gets its time from the NTP server. 2) In server mode, the device provides NTP information to clients. 3) A Cisco device can also perform in both client and server mode at the same time.

From config mode, point the device to the NTP server with the command ntp server 192.68.88.1, for example.

A minute or so after configuring the device, from enable mode run the command show ntp associations.

From enable mode use the command show ntp status. It can take between 5 and 10 minutes for a device to synchronize with its assigned NTP server.

From config mode, use the command ntp master 2. The number 2 is to tell devices in that network to trust that router. The lower that number is, the more trusted the device is.

I P address, subnet mask, default gateway, DNS server, and lease time for its I P address.

Resolvers make requests to higher-level DNS servers on behalf of hosts in a network.

While configuring that interface, use the command i p address dhcp and then no shut the interface.

Use the command show i p interface brief. The results will show the I P addresses assigned to all local interfaces, and also the method that was used to obtain that I P address.

Yes, and that route can be viewed with the command show I P route.

It requires Layer 2 connectivity between the requesting host and the DHCP server. In order to facilitate that, unless the default gateway is also the DHCP server, set up a DHCP relay through that router to the distant DHCP server.

While configuring the outside facing interface, use the command i p helper-address 192.168.88.1, if the remote DHCP server's IP address was 192.168.88.1.

Alerts for failed login attempts, STP events, OSPF events, and BGP events.

Logging console, which can be turned on with that command from config mode if it is not already on.

The logging monitor command must be issued from config mode. Once that is enabled and someone is logged in via telnet or SSH, they can then issue the command terminal monitor.

They are stored in RAM by default and can be viewed with the show logging command.

From config mode, enter the command logging 192.168.88.2 to send the log entries to that I P address.

1) 0 and 1 are Alert Emergency that require immediate action because the system is unusable. 2) 2, 3, and 4 are Critical Error Warnings that are Critical Event, Error Event, or Warning Event - in that order. 3) 5 and 6 are Notification Informational. 4) 7 is used for Debugging.

With the logging trap level-name command | 1, in this example only sending notifications that are level 1 or higher.

An Application layer protocol that queries devices for all sorts of information used for trending and troubleshooting purposes.

Port utilization, temperature, RAM, CPU, and storage.

You can set up SNMP notifications to let you know if there are issues with your devices, often before customers even realize they have a problem.

In some instances, SNMP can make changes to equipment remotely to resolve issues.

Shut or no shut ports, and also change VLAN information.

FTP: Uses TCP, Uses authentication, Used on modern devices, and Transfers faster. TFTP: Uses UDP, does not use authentication, Used on old and new devices, and often used for configuration backup files.

Identify traffic, mark it, and then enact policies on it. It enables administrators to deal with issues such as jitter, delay, loss, and bandwidth.

A link's speed measured in bits per seconds, or bps.

The time it takes a packet to reach its destination.

The time it takes a packet to reach a host, and then return to the sending host.

When there is a rapid variance in delay, such as 30 ms, 300 ms, 40 ms, 200 ms, etc.

How many packets are lost between a sending host and a receiving host.

When it enters or leaves an interface.

The process of identifying certain traffic.

Marks traffic into different classes.

Placing marked packets into buckets to be sent at certain times during congestion.

A 6-bit field within an I P header that shows that traffic has already been classified so that a router does not have to then examine and classify that packet.

Either decimal or text can be used to show the classification of that data.

It is 46 in decimal form, or expedited forward in text. It is used for low latency, jitter, and lost packets, such as with VoIP.

It is a collection of 12 different DSCP values. It has 4 queue types, each with 3 levels of drop priority - Low, Medium, and High.

It is used on all networking equipment to store packets that need to traverse busy interfaces.

The first packet in is the first packet to leave.

A Classifier places packets into a queue. A Scheduler takes packets from the queue for transmission. Prioritization chooses packets from certain queues to send first.

Into a low-latency queue so that it doesn't sit in the queue for long, which can affect the quality of voice transmissions.

1) Monitors bit rates to keep them within limits. 2) Holds packets in queues. 3) Needs to account for low-latency apps to avoid jitter or delay. 4) Controls Bursting. 5) Is used for Egress only.

1) Monitors bit rates to keep them within limits. 2) Drops packets. 3) Has a more simple configuration. 4) Has short methods of Bursting. 5) Bidirectional. 6) Discards excess or remarks packets.