CCNA Security 2.0 PT Practice SA Part 1 2015-2016

CCNA Security 2.0 PT Practice SA – Part 1

A few things to keep in mind while completing this activity:

1. Do not use the browser Back button or close or reload any exam windows during the exam.
2. Do not close Packet Tracer when you are done. It will close automatically.
3. Click the Submit Assessment button to submit your work.

Introduction

In this practice Packet Tracer Skills Based Assessment, you will:

• configure basic device hardening and secure network management

• configure port security and disable unused switch ports
• configure an IOS IPS
• configure a Zone-based Policy Firewall (ZPF) to implement security policies

Addressing Table

Device	Interface	IP Address	Subnet Mask	Gateway	DNS server
Internet	S0/0/0	209.165.200.225	255.255.255.252	n/a
	S0/0/1	192.31.7.1	255.255.255.252	n/a
	G0/0	192.135.250.1	255.255.255.0	n/a
Public Svr	NIC	192.135.250.5	255.255.255.0	192.135.250.1
External	S0/0/0	192.31.7.2	255.255.255.252	n/a
	G0/0	192.31.7.62	255.255.255.224	n/a
External Web Svr	NIC	192.31.7.35	255.255.255.224	192.31.7.62	192.135.250.5
External User	NIC	192.31.7.33	255.255.255.224	192.31.7.62	192.135.250.5
CORP	S0/0/0	209.165.200.226	255.255.255.252	n/a
	S0/0/1	209.165.200.254	255.255.255.252	n/a
Internal	S0/0/1	209.165.200.253	255.255.255.252	n/a
	G0/0	10.1.1.254	255.255.255.0	n/a
	G0/1.10	172.16.10.254	255.255.255.0	n/a
	G0/1.25	172.16.25.254	255.255.255.0	n/a
	G0/1.99	172.16.99.1	255.255.255.0	n/a
DMZ DNS Svr	NIC	10.1.1.5	255.255.255.0	10.1.1.254	192.135.250.5
DMZ Web Svr	NIC	10.1.1.2	255.255.255.0	10.1.1.254	10.1.1.5
PC0	NIC	172.16.10.5	255.255.255.0	172.16.10.254	10.1.1.5
PC1	NIC	172.16.10.10	255.255.255.0	172.16.10.254	10.1.1.5
AAA/NTP/Syslog Svr	NIC	172.16.25.2	255.255.255.0	172.16.25.254	10.1.1.5
PC2	NIC	172.16.10.15	255.255.255.0	172.16.10.254	10.1.1.5
Net Admin	NIC	172.16.25.5	255.255.255.0	172.16.25.254	10.1.1.5

Note: Appropriate verification procedures should be taken after each configuration task to ensure that it has been properly implemented.

Step 1: Configure Basic Device Hardening for the CORP and the Internal Routers.

1. Configure the CORP and the Internal routers to only accept passwords with a minimum length of 10 characters.
2. Configure an encrypted privileged level password of ciscoclass.
3. Enable password encryption for all clear text passwords in the configuration file.
4. Configure the console port and all vty lines with the following requirements:Note: Both the CORP and the Internal routers are already configured with the username CORPADMIN and password Ciscoccnas.
   • Use the local database for login.
   • Disconnect after being idle for 20 minutes.
5. Disable the CDP protocol on the CORP router on the link to the Internet router.

Step 2: Configure Secure Network Management for the CORP Router.

1. Configure the IOS login enhancement for all vty lines with the following requirements:

• Disable logins for 30 seconds after 3 failed login attempts within 60 seconds.

Step 3: Configure Secure Network Management for the Internal Router.

1. Configure the Internal router:
   • as an NTP client to the AAA/NTP/Syslog server
   • to update the router calendar (hardware clock) from the NTP time source
   • to timestamp log messages
   • to send logging messages to the AAA/NTP/Syslog server
2. Configure the IOS login enhancement for all vty lines with the following requirements:
   • Disable logins for 30 seconds after 3 failed login attempts within 60 seconds.
   • Log any failed or successful login to the syslog server.
3. Configure the Internal router to accept SSH connections. Use the following guidelines:Note: Internal is already configured with the username SSHAccess and the secret password ciscosshaccess.
   • The domain name is theccnas.com.
   • RSA encryption key pair using a modulus of 1024
   • SSH version 2, timeout of 90 seconds, and 2 authentication retries
   • All vty lines accept only SSH connections.
4. Configure the Internal router with server-based AAA authentication and verify its functionality:Note: The AAA server is already configured with RADIUS service, a username CORPSYS, and the password LetSysIn.
   • The key to connect to the RADIUS server is corpradius.
   • AAA authentication uses the RADIUS server as the default for console line and vty lines access.
   • The local database is used as the backup if the RADIUS server connection cannot be established.

Step 4: Configure ACLs on the Internal Router to Implement Secure Management Access.

1. Create ACL 12 to implement the security policy regarding the access to the vty lines:

• Only users logged on to the Net Admin PC are allowed access to the vty lines.

 Step 5: Configure Device Hardening for Switch1 and Switch4

1. Access Switch1 and Switch4 with username CORPADMIN, password Ciscoccnas, and the enable secret password of ciscoclass.
2. Configure Switch1 to protect against STP attacks.
   • Configure PortFast on FastEthernet ports 0/1 to 0/22.
   • Enable BPDU guard on FastEthernet ports 0/1 to 0/22.
3. Configure Switch1 port security and disable unused ports.
   • Set the maximum number of learned MAC addresses to 2 on FastEthernet ports 0/1 to 0/22. Allow the MAC address to be learned dynamically and to be retained in the running-config. Shutdown the port if a violation occurs.
   • Disable unused ports (Fa0/2-4, Fa0/6-10, Fa0/13-22).
4. Configure the trunk link on Fa0/23 and Fa0/24 on both Switch1 and Switch4
   • Disable DTP negotiation on the trunking ports.
   • Set the native VLAN as VLAN 50 for the trunk links.

Step 6: Configure an IOS IPS on the Internal Router.

1. On the Internal router, if asked to login, then login as CORPSYS with password LetSysIn. The enable secret password is ciscoclass.
2. Use the IPS signature storage location at flash:.
3. Create an IPS rule named corpips.
4. Configure the IOS IPS to use the signature categories. Retire the all signature category and unretire the ios_ips basic category.
5. Apply the IPS rule to the Gi0/0 interface in the out direction.
6. Modify the ios_ips basic category. Unretire the echo request signature (signature 2004, subsig 0); enable the signature; modify the signature event-action to produce an alert and deny packets that match the signature.
7. Verify that IPS is working properly. Net Admin in the internal network cannot ping DMZ Web Svr. DMZ Web Svr, however, can ping Net Admin.

Step 7: Configure ZPF on the CORP Router.

1. Access the CORP router with username CORPADMIN, password Ciscoccnas, and the enable secret password of ciscoclass.
2. Create the firewall zones.
   • Create an internal zone named CORP-INSIDE.
   • Create an external zone named INTERNET.
3. Define a traffic class to allow traffic from the Internal network to access services in the Internet.
   • Create a class map using the option of class map type inspect with the match-any keyword. Name the class map INSIDE_PROTOCOLS.
   • Match the protocols, http, tcp, udp, icmp, dns (Please note, the order of match statements is significant only because of the scoring need in Packet Tracer.)
4. Specify firewall policies to allow internal hosts to access Internet.
   • Create a policy map named INSIDE_TO_INTERNET.
   • Use the INSIDE_PROTOCOLS class map.
   • Specify the action of inspect for this policy map.
5. Define a traffic class to allow traffic from the Internet to access services in the DMZ network.
   • Create a class map using the option of class map type inspect with the match-any keyword. Name the class map DMZ_WEB.
   • Match the protocols, http and dns (Please note, the order of match statements is significant only because of the scoring need in Packet Tracer.)
6. Specify firewall policy to allow Internet traffic to access DMZ services.
   • Create a policy map named INTERNET_TO_DMZWEB.
   • Use the DMZ_WEB class map.
   • Specify the action of pass for this policy map.
7. Apply the firewall.
   • Create a pair of zones named IN_TO_OUT_ZONE with the source as CORP-INSIDE and destination as INTERNET.
   • Specify the policy map INSIDE_TO_INTERNET for handling the traffic between the two zones.
   • Create a pair of zones named INTERNET_TO_DMZ_ZONE with the source as INTERNET and destination as CORP-INSIDE.
   • Assign interfaces to the appropriate security zones.
8. Verify the ZPF configuration.
   • The External user can access the URLs http://www.theccnas.com and http://ift.tt/2esqc2O.
   • The External user cannot ping the DMZ Web Svr.
   • The PCs in the internal network can ping and access the External Web Svr URL.

 

CCNA Security 2.0 PT Practice SA – Part 1 question and answer will be revealed in this post. Hopefully this will helps you guys to pass this CCNA Security 2.0 Packet Tracer Practice SA Part 1 successfully. However, our current answer now only 84% correct. If you have complete 100% answer, please comment below or email to me.

CORP config

 

security  passwords min-length 10

enable secret ciscoclass

service password–encryption

line console 0

login local

exec–timeout 20 0

line vty 0 15

login local

exec–timeout 20 0

exit

interface serial0/0/0

no cdp enable

login block–for 30 attempts 3 within 60

zone security CORP–INSIDE

exit

zone security INTERNET

exit

class–map type inspect match–any INSIDE_PROTOCOLS

match protocol http

match protocol tcp

match protocol udp

match protocol icmp

match protocol dns

exit

policy–map type inspect INSIDE_TO_INTERNET

class type inspect INSIDE_PROTOCOLS

inspect

exit

exit

class–map type inspect match–any DMZ_WEB

match protocol http

match protocol dns

exit

policy–map type inspect INTERNET_TO_DMZWEB

class type inspect DMZ_WEB

pass

exit

exit

zone–pair security IN_TO_OUT_ZONE source CORP–INSIDE destination INTERNET

service–policy type inspect INSIDE_TO_INTERNET

exit

zone–pair security INTERNET_TO_DMZ_ZONE source INTERNET destination CORP–INSIDE

service–policy type inspect INTERNET_TO_DMZWEB

exit

interface serial0/0/0

zone–member security INTERNET

exit

interface serial0/0/1

zone–member security CORP–INSIDE

exit

Internal Config

security  passwords min-length 10

enable secret ciscoclass

service password–encryption

login on–failure log

login on–success log

line console 0

login local

exec–timeout 20 0

line vty 0 15

login local

exec–timeout 20 0

exit

interface serial0/0/0

no cdp enable

login block–for 30 attempts 3 within 60

ntp server 172.16.25.2 key 0

ntp update–calendar

service  timestamps log datetime msec

logging host 172.16.25.2

ip domain–name theccnas.com

crypto key generate rsa

1024

ip ssh version 2

ip ssh time–out 90

ip ssh authentication–retries 2

line vty 0 4

transport input ssh

exit

line vty 5 15

transport input ssh

exit

aaa new–model

Radius–server host 209.165.200.252 key corpradius

aaa authentication login default group radius local

aaa authentication login default local

aaa authorization exec default local

line vty 0 4

login authentication default

line vty 0 15

login authentication default

line con 0

login authentication default

exit

ip ips config location flash:

ip ips name corpips

ip ips signature–category

category all

retired true

exit

category ios_ips basic

retired false

exit

exit

interface Gig0/0

//Press ENTER

Switch1 Config

interface range fastEthernet0/1-22

spanning–tree portfast

spanning–tree bpduguard enable

switchport port–security

switchport port–security violation  shutdown

switchport port–security mac–address sticky

switchport port–security maximum 2

exit

interface range fastethernet 0/2–4

shutdown

interface range fastethernet 0/6–10

shutdown

interface range fastethernet 0/13–22

shutdown

exit

interface range fa0/23–24

switchport nonegotiate

switchport trunk native vlan 50

Switch4 Config

interface range fa0/23-24
switchport mode trunk
switchport nonegotiate
switchport trunk native vlan 50

To ending:

Network:Internal:AAA:Authentication:1
Network:Internal:RADIUS Client:RADIUS Server Hosts:0
Network:Internal:VTY Lines:0:Access Class In
Network:Internal:ACL:12
Network:Internal:IPS:Signature:Retired
Network:Internal:IPS:Signature:Icmp Signature Id
Network:Internal:IPS:Signature:Icmp Sub Id

Update from Commenter for 100%

access-list 12 permit host 172.16.25.5
line vty 0 15
access-class 12 in
exit

 

For Internal Config is continuing with:
interface Gi0/0
ip ips corpips out
exit
(config)#ip ips signature-definition
(config-sigdef)# signature 2004 0
(config-sigdef-sig)# status
(config-sigdef-sig-status)# retired false
(config-sigdef-sig-status)# enable true
(config-sigdef-sig-status)# exit
(config-sigdef-sig)# engine
(config-sigdef-sig-engine)# event-action produce-alert
(config-sigdef-sig-engine)# event-action deny-packet-inline
(config-sigdef-sig-engine)# exit
(config-sigdef-sig)# exit
(config-sigdef)# exit
(config)# exit

 

If you want to score a 100%, you must put one single line authentication aaa (first line) :

aaa authentication login default group radius local –> good

aaa authentication login default local ————> bad, because if you put both lines you delete the first line, that is the correct option.

from http://www.ccna5.net/