This document provides the questions and answers for CCNA 2 Chapter 11 2014 v5.0 exam. It discusses network address translation (NAT) and port address translation (PAT). Some key points covered include:
- Dynamic NAT automatically maps inside local addresses to inside global addresses
- Port forwarding allows an external user to reach a service on a private IPv4 address inside a LAN
- Overload NAT is used when there are more private IP addresses than available public IP addresses
- Two required steps to configure PAT are to identify the inside interface and define a pool of global addresses for overload translation
Cisco CCNA Training/Exam Tips that are helpful for your Certification Exam!
To be Cisco Certified please Check out:
http://asmed.com/information-technology-it/
Cisco CCNA Training/Exam Tips that are helpful for your Certification Exam!
To be Cisco Certified please Check out:
http://asmed.com/information-technology-it/
CCNA 4 Answers, CCNA 1 Version 4.0 Answers, CCNA 2 Version 4.0 Answers, CCNA 3 Version 4.0 Answers, CCNA 4 Version 4.0 Answers, CCNA 1 Final Version 4.0 Answers, CCNA 2 Final Version 4.0 Answers, CCNA 3 Final Version 4.0 Answers, CCNA 4 Final Version 4.0 Answers
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This is a presentation I did during my internship @ PARKS in 2014. It shows how to configure NAT & firewall rules using IPTABLES.
I hope this can be useful to somebody in the future.
CCNA 4 Answers, CCNA 1 Version 4.0 Answers, CCNA 2 Version 4.0 Answers, CCNA 3 Version 4.0 Answers, CCNA 4 Version 4.0 Answers, CCNA 1 Final Version 4.0 Answers, CCNA 2 Final Version 4.0 Answers, CCNA 3 Final Version 4.0 Answers, CCNA 4 Final Version 4.0 Answers
NAT and firewall presentation - how setup a nice firewallCassiano Campes
This is a presentation I did during my internship @ PARKS in 2014. It shows how to configure NAT & firewall rules using IPTABLES.
I hope this can be useful to somebody in the future.
CCNA 4 Answers, CCNA 1 Version 4.0 Answers, CCNA 2 Version 4.0 Answers, CCNA 3 Version 4.0 Answers, CCNA 4 Version 4.0 Answers, CCNA 1 Final Version 4.0 Answers, CCNA 2 Final Version 4.0 Answers, CCNA 3 Final Version 4.0 Answers, CCNA 4 Final Version 4.0 Answers
NAT (network address translation) & PAT (port address translation)Netwax Lab
Network Address Translation (NAT) is designed for IP address conservation. It enables private IP
networks that use unregistered IP addresses to connect to the Internet. NAT operates on a router,
usually connecting two networks together, and translates the private (not globally unique) addresses in
the internal network into legal addresses, before packets are forwarded to another network.
CCNA: Connecting Networks SA Exam
Lab 13 CCNA: Connecting Networks
CSIS 430 – Weeks 1 - 4
Hands-On Skills Assessment
Topology
Complete the assessment in Packet Tracer and document and fill in the blanks. Submit this file and the pka file in Week 8 Lab 13, Points will not be given for incomplete Steps.
Assessment Objectives
Part 1: Initialize Devices (2 points, 5 minutes)
Part 2: Configure Device Basic Settings (8 points, 20 minutes)
Part 3: Configure PPP Connections (7 points, 20 minutes)
Part 4: Configure NAT (4 points, 15 minutes)
Part 5: Monitor the Network (6 points, 15 minutes)
Part 6: Configure Frame Relay (7 points, 20 minutes)
Part 7: Configure a GRE VPN Tunnel (6 points, 20 minutes)
Scenario
In this Skills Assessment (SA) you will create a small network. You must connect the network devices and configure those devices to support various WAN protocols. This will require that you reload the routers before starting your configuration of the next WAN protocol. The assessment has you save your basic device configurations to flash prior to implementing a WAN protocol to allow you to restore these basic configurations after each reload.
The first WAN protocol you will configure is Point-to-Point Protocol (PPP) with CHAP authentication. You will also configure Network Address Translation (NAT), and network monitoring protocols during this phase of the assessment. After your instructor has signed off on this phase, you will reload the routers and configure Frame Relay. After the Frame Relay part is complete, and has been signed off by your instructor, you will reload the routers and configure a GRE VPN tunnel. Network configurations and connectivity will be verified throughout the assessment by using common CLI commands.
Required Resources
3 Routers (Cisco 1941 with Cisco IOS Release 15.2(4)M3 universal image or comparable)
3 PCs (Windows 7, Vista, or XP with terminal emulation program, such as Tera Term.
Console cable to configure the Cisco IOS devices via the console ports
Ethernet and Serial cables as shown in the topology
Initialize Devices
Total points: 2
Time: 5 minutes
Initialize and reload routers.
Erase the startup configurations and reload the devices.
Task
IOS Command
Points
Erase the startup-config file on all routers.
erase startup-config
(1 point)
Reload all routers.
reload
(1 point)
Points: __________ of 2
Configure Device Basic Settings
Total points: 8
Time: 20 minutes
Configure PCs.
Assign static IPv4 address information (IP address, subnet mask, default gateway) to the three PCs in the topology. Refer to the Topology diagram to obtain the IP address information.
Configuration Item or Task
Specification
Points
Configure static IPv4 address information on PC-A.
IP Address: 192.168.11.3
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.11.1
1
Configure static IPv4 address information on PC-B.
IP Address: 192.168.22.3
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.22.1
Configure static IPv4 address information on PC ...
ITNE2003 - AssignmentLearning ObjectivesUpon completion of this.docxsleeperfindley
ITNE2003 - Assignment
Learning Objectives
Upon completion of this assignment, you will be able to:
Subnet an address space given requirements.
Assign appropriate addresses to interfaces and document them in the Addressing Table.
Cable a network according to the Topology Diagram.
Erase the startup configuration and reload a router to the default state.
Configure RIPv2 routing on all routers.
Configure and propagate a static default route.
Verify RIPv2 operation.
Test and verify full connectivity.
Reflect upon and document the network implementation.
Scenario
In this lab activity, you will be given a network diagram that must be implemented in packet tracer. A combination of RIPv2 and static routing will be required so that hosts on networks that are not directly connected will be able to communicate with each other.
Topology Diagram
Task 1: Fill Addressing Table:
Step 1: Examine the network requirements.
The addressing for the network has the following requirements:
The ISP LAN will use the 203.162.108.0/24 network.
The link between the ISP router and the HQ router will use the 172.16.10.0/30 network.
The link between the BRANCH router and the HQ router will use the 172.16.10.4/30 network.
The HQ LAN will use the 192.168.1.128/25 network
The BRANCH LAN will use the 10.10.2.0/23 network.
(
Note:
Remember that the interfaces of network devices are also host IP addresses and are included in the above addressing requirements.)
Step 2: Fill the address table with appropriate IP addresses and subnet masks:
Device
Interface
IP Address
Subnet Mask
Default Gateway
BRANCH
Fa0/0
N/A
S0/0/0
N/A
HQ
Fa0/0
N/A
S0/0/0
N/A
S0/0/1
N/A
ISP
Fa0/0
N/A
S0/0/1
N/A
PC1
NIC
PC2
NIC
PC3
NIC
Task 2: Implement the Network.
Step 1: Cable a network that is similar to the one in the Topology Diagram in Packet Tracer.
You can use any current router in your lab as long as it has the required interfaces shown in the topology.
Note:
If you use 1700, 2500, or 2600 routers, the router outputs and interface descriptions will appear different.
Step 2: Perform basic administrative configuration in the BRANCH, HQ, and ISP routers
Configure the router hostname as the minimum
Task 3: Configure and Activate Serial and Ethernet Addresses.
Step 1: Configure the BRANCH, HQ, and ISP routers.
Configure the interfaces on the BRANCH, HQ, and ISP routers with the IP addresses from the Addressing Table provided under the Topology Diagram.
When you have finished, be sure to save the running configuration to the NVRAM of the router.
Step 2: Configure the Ethernet interfaces of PC1, PC2, and PC3.
Configure the Ethernet interfaces of PC1, PC2, and PC3 with the IP addresses from the Addressing Table provided under the Topology Diagram.
Task 4: Verify Connectivity to Next-Hop Device.
You should
not
have connectivity between end devices yet. However, you can test connectivity between two routers and between an end device and its default gateway.
Step 1: Verify BR.
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Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
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Session Overview
-------------------------------------------
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JMeter webinar - integration with InfluxDB and Grafana
Ccna 2 chapter 11 2014 v5
1. ccnav5.org http://ccnav5.org/ccna-2-chapter-11-2014-v5-0-exam-answers/?pfstyle=wp
CCNAV5.Org
CCNAv5.Org
CCNA 2 Chapter 11 2014 v5.0 Exam Answers
CCNA 2 Chapter 11 2014 v5.0 Exam Answers
CCNA 2 Exam 2014
1
Which version of NAT allows many hosts inside a private network to simultaneously use a single inside global address
for connecting to the Internet?
dynamic NAT
port forwarding
PAT*
static NAT
2
What is the group of public IPv4 addresses used on a NAT-enabled router known as?
inside local addresses
outside global addresses
inside global addresses*
outside local addresses
3
Launch PT Hide and Save PT
Open the PT Activity. Perform the tasks in the activity instructions and then answer the question.
What problem is causing PC-A to be unable to communicate with the Internet?
The access list used in the NAT process is referencing the wrong subnet.
The static route should not reference the interface, but the outside address instead.
The NAT interfaces are not correctly assigned.*
This router should be configured to use static NAT instead of PAT.
The ip nat inside source command refers to the wrong interface.
2. 4
What is a disadvantage of NAT?
There is no end-to-end addressing.*
The internal hosts have to use a single public IPv4 address for external communication.
The router does not need to alter the checksum of the IPv4 packets.
The costs of readdressing hosts can be significant for a publicly addressed network.
5
Which statement accurately describes dynamic NAT?
It provides a mapping of internal host names to IP addresses.
It always maps a private IP address to a public IP address.
It provides an automated mapping of inside local to inside global IP addresses.*
It dynamically provides IP addressing to internal hosts.
6
When dynamic NAT without overloading is being used, what happens if seven users attempt to access a public server
on the Internet when only six addresses are available in the NAT pool?
All users can access the server.
The first user gets disconnected when the seventh user makes the request.
The request to the server for the seventh user fails.*
No users can access the server.
7
What is the purpose of port forwarding?
Port forwarding allows an external user to reach a service on a private IPv4 address that is located inside a LAN.*
Port forwarding allows users to reach servers on the Internet that are not using standard port numbers.
Port forwarding allows an internal user to reach a service on a public IPv4 address that is located outside a LAN.
Port forwarding allows for translating inside local IP addresses to outside local addresses.
8
Refer to the exhibit. What has to be done in order to complete the static NAT configuration on R1?
R1 should be configured with the command ip nat inside source static 209.165.200.1 192.168.11.11.
R1 should be configured with the command ip nat inside source static 209.165.200.200 192.168.11.11.
Interface S0/0/0 should be configured with the command ip nat outside.*
Interface Fa0/0 should be configured with the command no ip nat inside.
9
When NAT is employed in a small office, which address type is typically used for hosts on the local LAN?
Internet-routable addresses
3. both private and public IP addresses
private IP addresses*
global public IP addresses
10
Refer to the exhibit. What is the purpose of the command
marked with an arrow shown in the partial configuration
output of a Cisco broadband router?
defines which addresses can be translated*
defines which addresses are allowed into the router
defines which addresses are assigned to a NAT pool
defines which addresses are allowed out of the router
11
A network administrator configures the border router with
the command R1(config)# ip nat inside source list 4 pool
corp. What is required to be configured in order for this
particular command to be functional?
a VLAN named corp to be enabled and active and routed by
R1
an access list named corp that defines the private addresses
that are affected by NAT
ip nat outside to be enabled on the interface that connects to the LAN affected by the NAT
an access list numbered 4 that defines the starting and ending public IP addresses
a NAT pool named corp that defines the starting and ending public IP addresses*
12
Refer to the exhibit. R1 is configured for NAT as displayed. What is wrong with the configuration?
Access-list 1 is misconfigured.
NAT-POOL2 is not bound to ACL 1.*
Interface Fa0/0 should be identified as an outside NAT interface.
The NAT pool is incorrect.
13
A network engineer has configured a router with the command ip nat inside source list 4 pool corp overload. Why did
the engineer use the overload option?
The company needs to have more public IP addresses available to be used on the Internet.
The company has a small number of servers that should be accessible by clients from the Internet.
4. The company has more private IP addresses than available public IP addresses.*
The company router must throttle or buffer traffic because the processing power of the router is not enough to handle the normal
load of external-bound Internet traffic.
14
Refer to the exhibit. What will be the effect of entering the command that is shown in the exhibit on R2 as part of the
dynamic NAT configuration?
It will bind NAT-POOL1 with ACL 1.*
It will identify an inside NAT interface.
It will define a pool of addresses for translation.
It will define the source ACL for the external interface.
15
Which configuration would be appropriate for a small business that has the public IP address of 209.165.200.225/30
assigned to the external interface on the router that connects to the Internet?
access-list 1 permit 10.0.0.0 0.255.255.255
ip nat pool comp 192.0.2.1 192.0.2.8 netmask 255.255.255.240
ip nat inside source list 1 pool comp overload
access-list 1 permit 10.0.0.0 0.255.255.255
ip nat pool comp 192.0.2.1 192.0.2.8 netmask 255.255.255.240
ip nat inside source list 1 pool comp overload
ip nat inside source static 10.0.0.5 209.165.200.225
access-list 1 permit 10.0.0.0 0.255.255.255
ip nat pool comp 192.0.2.1 192.0.2.8 netmask 255.255.255.240
ip nat inside source list 1 pool comp
access-list 1 permit 10.0.0.0 0.255.255.255
ip nat inside source list 1 interface serial 0/0/0 overload ********
16
Which type of NAT maps a single inside local address to a single inside global address?
dynamic
port address translation
static*
overloading
17
Typically, which network device would be used to perform NAT for a corporate environment?
host device
router*
DHCP server
server
switch
18
Several key servers in an organization must be directly accessible from the Internet. What addressing policy should be
implemented for these servers?
Use dynamic NAT to provide addresses for the servers.
Place all of the servers in their own Class C private subnet.
Use DHCP to assign addresses from the pool of Class B addresses.
Assign static internal addresses and public external addresses to each of the servers.*
5. 19
What is a characteristic of unique local addresses?
They are designed to improve the security of IPv6 networks.
Their implementation depends on ISPs providing the service.
They allow sites to be combined without creating any address conflicts.*
They are defined in RFC 3927.
20
Refer to the exhibit. Based on the output that is shown, what type of NAT has been implemented?
static NAT with a NAT pool
PAT using an external interface*
static NAT with one entry
dynamic NAT with a pool of two public IP addresses
21
Refer to the exhibit. The NAT configuration applied to the router is as follows:
ERtr(config)# access-list 1 permit 10.0.0.0 0.255.255.255
ERtr(config)# ip nat pool corp 209.165.201.6 209.165.201.30 netmask 255.255.255.224
ERtr(config)# ip nat inside source list 1 pool corp overload
ERtr(config)# ip nat inside source static 10.10.10.55 209.165.201.4
ERtr(config)# interface gigabitethernet 0/0
ERtr(config-if)# ip nat inside
ERtr(config-if)# interface serial 0/0/0
ERtr(config-if)# ip nat outside
Based on the configuration and the output shown, what can be determined about the NAT status within the
organization?
Static NAT is working, but dynamic NAT is not.
NAT is working.
Not enough information is given to determine if both static and dynamic NAT are working.*
Dynamic NAT is working, but static NAT is not.
22
6. Place the options in the following order:
- not scored –
step 5
step 2
step 4
step 1
step 3
23
What are two required steps to configure PAT? (Choose two.)
Define the range of ports to be used.
Define a pool of global addresses to be used for overload translation.*
Identify the inside interface.*
Define a standard access list that allow the outside global addresses to be used.
Define a standard access list denying the addresses that should be translated.