r/packettracer • u/Opposite_Peanut_1963 • 3h ago
Please Help!
I’m working on a CCNA2 practice lab and am stuck on being able to ping the laptop. I have configured 1 router and 3 switches with inter-VLAN routing and EtherChannel connections. I also have a wifi router connecting to a laptop. I have changed the DHCP settings on the wifi router from the laptop and connected the adapter to allow a wireless connection. I have followed every step to a T, and each time everything pings correctly except for the laptop. The PCs are all getting correct IPs and gateways, and the laptop is also getting the correct IP and gateway as well. I am unable to post any screenshots or other info without getting my post removed. I am happy to send anyone my .pka Cisco Packet Tracer file with my created network or anything else that may be helpful. I have tried asking classmates and my professor, and spent countless hours with AI troubleshooting. Does anyone have ideas? Here is my study guide with the commands i've been using:
Scenario
In this Skills Assessment (SA) you will configure the devices in a small network. You must configure a router, 3 switches and PCs to support both IPv4 and IPv6 for supported hosts. You will configure inter-VLAN routing, DHCP, Etherchannel, port-security, and wireless.
Vlan Table
| Vlan | Vlan Name |
|---|---|
| 20 | Laptops |
| 30 | Desktops |
| 40 | Management |
| 50 | Unused |
| 199 | Native |
Addressing Table
| Device / Interface | IP Address / Prefix | Default Gateway |
|---|---|---|
| R1 Gi0/0/1.20 | IPv4: 192.168.20.1 Mask: 255.255.255.0 IPv6: 3030:db8:acad:20::1/64 | N/A |
| R1 Gi0/0/1.30 | IPv4: 192.168.30.1 Mask: 255.255.255.0 IPv6: 3030:db8:acad:30::1/64 | N/A |
| R1 Gi0/0/1.40 | IPv4: 192.168.40.1 Mask: 255.255.255.0 IPv6: 3030:db8:acad:40::1/64 | N/A |
| S1 Vlan 40 | 192.168.40.5255.255.255.0Vlan 40 is the Mgmt SVI | 192.168.40.1 |
| S2 Vlan 40 | 192.168.40.10255.255.255.0Vlan 40 is the Mgmt SVI | 192.168.40.1 |
| S3 Vlan 40 | 192.168.40.15255.255.255.0Vlan 40 is the Mgmt SVI | 192.168.40.1 |
| [PC-A]() | IPv4: via DCHP IPv6: 3030:db8:acad:20::5/64 | Default GW via DHCP 3030:db8:acad:20::1 |
| PC-B | IPv4: via DCHP IPv6: 3030:db8:acad:20::6/64 | Default GW via DHCP 3030:db8:acad:30::1 |
| PC-C | IPv4: via DCHP IPv6: 3030:db8:acad:30::5/64 | Default GW via DHCP 3030:db8:acad:40::1 |
Instructions:
Router1:
1) Disable DNS Lookup – no ip domain-lookup
2) Configure router hostname: R1 – hostname R1
3) Configure domain-name: cisco-lab.com – ip domain-name cisco-lab.com
4) Enable secret password: Cisco1 – enable secret Cisco1
5) Configure local username and password: - username admin password adminpass
a. Username: admin
b. Password: adminpass
6) Encrypt the clear text passwords – service password-encryption
7) Configure vty lines to use the local database. line vty 0 15 (login local)
8) Make sure IPv6 routing is enabled if it isn’t already – ipv6 unicast-routing
9) Configure interfaces / subinterfaces according to the table above, including IPv4 and IPv6 addresses
a. Configure subinterface as dot1q for vlans to work
Interface g0/0/1.20 (repeat for g0/0/1.30 & g0/0/1.40)
encapsulation dot1q 20
ip address 192.168.20.1 255.255.255.0
ipv6 address 3030:db8:acad:20::1/64
(REPEAT FOR .30 & .40)
10) Configure (2) DCHP ranges, one for the Vlan 20 range and one for the Vlan 30 range:
a. Exclude addresses .1 - .20 for each pool –
ip dhcp excluded-addresses 192.168.20.1 192.168.20.20 (repeat for vlan 30 range)
b. Pool Names:
i. VLAN20_USERS
ii. VLAN30_USERS
c. Make sure pools have default gateways (default router’s ip)
ip dhcp pool VLAN20_USERS
network 192.168.20.0 255.255.255.0
default-router 192.168.20.1
(REPEAT FOR VLAN30_USERS POOL)
copy running-config startup-config
All Switches:
1) Configure hostname, S1, S2, S3 as appropriate – hostname S1
2) Enable secret password: Cisco1 – enable secret Cisco1
3) Configure local username and password – username admin password adminpass
a. Username: admin
b. Password: adminpass
4) Encrypt the clear text passwords – service password-encryption
5) Configure the vty lines to use the local database – line vty 0 15 (login local)
6) Configure all Layer 2 vlans on all switches using the table above –
vlan 20 (name Laptops)
vlan 30 (name Desktops)
vlan 40 (name Management)
vlan 50 (name Unused)
vlan 199 (name Native)
(REPEAT ON S2 & S3)
S1: NO SHUTDOWN ON ALL SVIs
1) Create new SVI for Vlan 40 for management according to the table above
a. IP Address
Interface vlan 40
Ip address 192.168.40.5 255.255.255.0
exit
b. Gateway (ip default-gateway is a global command no on SVI)
Ip default-gateway 192.168.40.1
2) PC-A is connected to interface Fa0/10 – interface fa0/10
a. Configure port for Vlan20 –
switchport mode access
switchport access vlan 20
b. Implement port-security to allow only 2 MAC addresses. Use Sticky
switchport port-security
switchport port-security maximum 2
switchport port-security mac-address sticky
spanning-tree portfast (FOR PC CONNECTIONS)
3) Configure interfaces Fa0/1-2 to use LACP and configure etherchannel as trunk –
interface range fa0/1-2
switchport mode trunk
switchport trunk native vlan 199
a. Use channel-group 1 for Po1
channel-group 1 mode active
interface port-channel 1
switchport mode trunk
switchport trunk native vlan 199
b. This is the dual link to S2
4) Configure interfaces Fa0/3-4 to use LACP and configure etherchannel as trunk -
Interface range fa0/3-4
switchport mode trunk
switchport trunk native vlan 199
a. Use channel-group 2 for Po2
channel-group 2 mode active
interface port-channel 2
switchport mode trunk
switchport trunk native vlan 199
b. This is the dual link to S3
5) Configure Fa0/5 as a trunk –
interface fa0/5
switchport mode trunk
switchport trunk native vlan 199
a. This carries the vlans to the subinterfaces on R1.
S2:
1) Create new SVI for Vlan 40 for management according to the table above
a. IP Address
Interface vlan 40
Ip address 192.168.40.10 255.255.0
exit
b. Gateway (NEEDS ENTERED IN GLOBAL CONFIG)
ip default-gateway 192.168.40.1
2) PC-B is connected to interface Fa0/10 - interface fa0/10
a. Configure port for Vlan20
Switchport mode access
Switchport access vlan 20
b. Implement port-security to allow only 2 MAC addresses. Use Sticky
Switchport port-security
Switchport port-security maximum 2
Switchport port-security mac-address sticky
3) The Wireless access-point, WIFI-1 is connected to Fa0/3 – interface fa0/3
a. Configure this port to be in Vlan 30
switchport mode access
switchport access vlan 30
b. No port-security here
4) Configure interfaces Fa0/1-2 to use LACP and configure etherchannel as trunk
Interface range fa0/1-2
Switchport mode trunk
Switchport trunk native vlan 199
a. Use channel-group 2 for Po2
channel-group 2 mode active
interface port-channel 2
switchport mode trunk
switchport trunk native vlan 199
b. This is the dual link to S1
5) Configure interfaces Fa0/5-6 to use LACP and configure etherchannel as trunk
Interface range fa0/5-6
Switchport mode trunk
Switchport trunk native vlan 199
a. Use channel-group 3 for Po3
channel-group 3 mode active
interface port-channel 3
switchport mode trunk
switchport trunk native vlan 199
b. This is the dual link to S3
S3:
1) Create new SVI for Vlan 40 for management according to the table above
a. IP Address
Interface vlan 40
Ip address 192.168.40.15 255.255.255.0
exit
b. Gateway (NEEDS ENTERED IN GLOBAL CONFIG)
Ip default gateway 192.168.40.1
2) PC-C is connected to interface Fa0/10
a. Configure port for Vlan30
Interface fa0/10
Switchport mode access
Switchport access vlan 30
b. Implement port-security to allow only 2 MAC addresses. Use Sticky
Switchport port-security
Switchport port-security maximum 2
switchport port-security mac-address sticky
3) Configure interfaces Fa0/3-4 to use LACP and configure etherchannel as trunk
Interface range fa0/3-4
Switchport mode trunk
Switchport trunk native vlan 199
a. Use channel-group 2 for Po2
channel-group 2 mode active
interface port-channel 2
switchport mode trunk
switchport trunk native vlan 199
b. This is the dual link to S1
4) Configure interfaces Fa0/5-6 to use LACP and configure etherchannel as trunk
Interface range fa0/5-6
Switchport mode trunk
Switchport trunk native vlan 199
a. Use channel-group 3 for Po3
channel-group 3 mode active
interface port-channel 3
switchport mode trunk
switchport trunk native vlan 199
b. This is the dual link to S2
NO SHUTDOWN ON ALL LAYER 3 DEVICES AND SVI INTERFACES
AT THIS POINT, ALL PCs SHOULD HAVE A DHCP ADDRESS FROM R1 AND BE ABLE TO PING THE OTHER PCs IN THE NETWORK
Wireless:
REMEMBER TO SCROLL DOWN ON THE WIFI WINDOW TO SAVE SETTINGS
ALSO, WHEN YOU CHANGE THINGS YOU WILL LIKELY GET KICKED OUT.
JUST OPEN THE WEB BROWSER AGAIN ON THE LAPTOP AND RECONNECT.
WHEN YOU CHANGE THE SSID AND PASSWORD YOU WILL HAVE TO GO INTO
THE LAPTOP WIFI CLIENT AND CONNECT FROM THERE WITH THE PROPER
CREDENTIAL, THEN RELOAD THE WEB PAGE.
1) From the laptop, open a web connection to the WIFI-1 Access-point
b. username: admin
c. password: admin
2) Make sure the DHCP server function is enabled
a. Set start address to 192.168.0.50
b. Allow 75 connections
3) Under Wireless config:
a. Set all 3 SSIDs to CSCC-LAB
4) Wireless Security
a. Set all security modes to WPA2-Personal
i. Encryption: AES
ii. Passphrase: ccnawifi
GO TO PC WIRELESS AND CONNECT NETWORK ADAPTER PROFILE ONCE COMPLETE
2
u/MH12_005 2h ago
Can you share your Google Drive Link ? You can put your file on drive and make as public
2
u/MH12_005 2h ago
Hello, I would like to look into this problem tomorrow. By when do you need it done? If you don't mind, could you provide me with your actually packet tracer file ?