8.2.4.14 Packet Tracer – Troubleshooting Enterprise Networks 3

8.2.4.14 Packet Tracer – Troubleshooting Enterprise Networks 3

Packet Tracer – Troubleshooting Enterprise Networks 3 (Answer Version)

Answer Note: Red font color or Gray highlights indicate text that appears in the Answer copy only.

Topology

Addressing Table

Device	Interface	IP Address	Subnet Mask	Default Gateway
R1	G0/0	192.168.10.1	255.255.255.0	N/A
	S0/0/0	10.1.1.1	255.255.255.252	N/A
	S0/0/1	10.3.3.1	255.255.255.252	N/A
R2	G0/0	209.165.200.225	255.255.255.224	N/A
	G0/1	192.168.20.1	255.255.255.0	N/A
	S0/0/0	10.1.1.2	255.255.255.252	N/A
	S0/0/1	10.2.2.1	255.255.255.252	N/A
R3	G0/1	192.168.30.1	255.255.255.0	NN/A
	S0/0/0	10.3.3.2	255.255.255.252	N/A
	S0/0/1	10.2.2.2	255.255.255.252	N/A
S1	VLAN10	DHCP assigned	DHCP assigned	DHCP assigned
S2	VLAN11	192.168.11.2	255.255.255.0	N/A
S3	VLAN30	192.168.30.2	255.255.255.0	N/A
PC1	NIC	DHCP assigned	DHCP assigned	DHCP assigned
PC2	NIC	192.168.30.10	255.255.255.0	192.168.30.1
TFTP Server	NIC	192.168.20.254	255.255.255.0	192.168.20.1

Background

This activity uses a variety of technologies you have encountered during your CCNA studies, including routing, port security, EtherChannel, DHCP, NAT, PPP, and Frame Relay. Your task is to review the requirements, isolate and resolve any issues, and then document the steps you took to verify the requirements.

Note: This activity begins with a partial score.

Requirements

DHCP

• R1 is the DHCP server for the R1 LAN.

Switching Technologies

• Port security is configured to only allow PC1 to access S1’s F0/3 interface. All violations should disable the interface.
• Link aggregation using EtherChannel is configured on S2, S3, and S4.

Routing

• All routers are configured with OSPF process ID 1 and no routing updates should be sent across interfaces that do not have routers connected.
• R2 is configured with a default route pointing to the ISP and redistributes the default route.
• NAT is configured on R2 and no untranslated addresses are permitted to cross the Internet.

WAN Technologies

• The serial link between R1 and R2 uses Frame Relay.
• The serial link between R2 and R3 uses HDLC encapsulation.
• The serial link between R1 and R3 uses PPP with PAP.

Connectivity

• Devices should be configured according to the Addressing Table.
• Every device should be able to ping every other device.

Troubleshooting Documentation

Device	Error	Correction
R1	There is an incorrect default gateway in DHCP pool	ip dhcp pool Access default-router 192.168.10.1
R1	The default route propagation should not be configured on this router	router ospf 1 no default-information originate
R2	The default route propagation should be configured on this router	router ospf 1 default-information originate
R2	Incorrect encapsulation on S0/0/1	interface s0/0/1 encapsulation hdlc
R3	R3 is not forming an adjacency with R1 and R2	router ospf 1 no passive-interface default passive-interface g0/1
S1	Port security was configured on the incorrect interface	interface FastEthernet0/3 switchport access vlan 10 switchport mode access switchport port-security switchport port-security mac-address sticky
S3	Interface G1/1 switchport is not configured as a trunk port	interface g1/1 switchport mode trunk
S4	Port channels are configured incorrectly	interface range f0/1-2 no channel-group 3 mode auto channel-group 2 mode auto interface range f0/3-4 no channel-group 2 mode auto channel-group 3 mode auto

Verification Documentation

Capture output from verification commands and provide documentation proving that each of the requirements has been satisfied.

Answer’s Note: The answer key for this section is left blank because there are many ways to verify the requirements.

Suggested Scoring Rubric

Packet Tracer scores 60 points. The troubleshooting documentation and Answer verification is worth 40 points.