I'm making a simple exercise to understand how to route between vlans. I have this setup, a router in the top where routing occurs and three vlans.
I've created the vlans and added encapsulation for each vlan in Router1 and attributed IP for the gateways accordingly.
Router1 has the following configuration:
Current configuration : 865 bytes
!
version 12.4
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Router
!
!
!
!
!
!
!
!
ip cef
no ipv6 cef
!
!
!
!
!
!
!
!
!
!
!
!
spanning-tree mode pvst
!
!
!
!
!
!
interface FastEthernet0/0
no ip address
duplex auto
speed auto
shutdown
!
interface FastEthernet0/0.2
no ip address
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
!
interface FastEthernet0/1.1
encapsulation dot1Q 2
ip address 192.168.1.254 255.255.255.0
!
interface FastEthernet0/1.2
encapsulation dot1Q 3
ip address 192.168.2.254 255.255.255.0
!
interface FastEthernet0/1.3
encapsulation dot1Q 4
ip address 192.168.3.254 255.255.255.0
!
interface Vlan1
no ip address
shutdown
!
ip classless
!
ip flow-export version 9
!
!
!
!
!
!
!
line con 0
!
line aux 0
!
line vty 0 4
login
!
!
!
end
Switch0 has the following vlans configured:
Current configuration : 1091 bytes
!
version 12.1
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Switch
!
!
!
spanning-tree mode pvst
!
interface FastEthernet0/1
!
interface FastEthernet0/2
!
interface FastEthernet0/3
!
interface FastEthernet0/4
!
interface FastEthernet0/5
!
interface FastEthernet0/6
!
interface FastEthernet0/7
!
interface FastEthernet0/8
!
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13
!
interface FastEthernet0/14
!
interface FastEthernet0/15
!
interface FastEthernet0/16
!
interface FastEthernet0/17
!
interface FastEthernet0/18
!
interface FastEthernet0/19
!
interface FastEthernet0/20
!
interface FastEthernet0/21
!
interface FastEthernet0/22
!
interface FastEthernet0/23
switchport access vlan 2
switchport mode access
!
interface FastEthernet0/24
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
no ip address
shutdown
!
!
!
!
line con 0
!
line vty 0 4
login
line vty 5 15
login
!
!
!
end
Switch1 has the following vlans configured:
Current configuration : 1288 bytes
!
version 12.1
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Switch
!
!
!
spanning-tree mode pvst
!
interface FastEthernet0/1
description connects to PC1
switchport access vlan 3
switchport mode access
!
interface FastEthernet0/2
!
interface FastEthernet0/3
!
interface FastEthernet0/4
!
interface FastEthernet0/5
!
interface FastEthernet0/6
!
interface FastEthernet0/7
!
interface FastEthernet0/8
!
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13
!
interface FastEthernet0/14
!
interface FastEthernet0/15
!
interface FastEthernet0/16
!
interface FastEthernet0/17
!
interface FastEthernet0/18
!
interface FastEthernet0/19
!
interface FastEthernet0/20
!
interface FastEthernet0/21
!
interface FastEthernet0/22
description connects to Switch0
switchport mode trunk
!
interface FastEthernet0/23
description connects to Switch2
switchport mode trunk
!
interface FastEthernet0/24
description connects to router1
switchport mode trunk
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
no ip address
shutdown
!
!
!
!
line con 0
!
line vty 0 4
login
line vty 5 15
login
!
!
!
end
Switch2 has the following vlans configured:
Current configuration : 1114 bytes
!
version 12.1
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Switch
!
!
!
spanning-tree mode pvst
!
interface FastEthernet0/1
switchport access vlan 4
switchport mode access
!
interface FastEthernet0/2
!
interface FastEthernet0/3
!
interface FastEthernet0/4
!
interface FastEthernet0/5
!
interface FastEthernet0/6
!
interface FastEthernet0/7
!
interface FastEthernet0/8
!
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13
!
interface FastEthernet0/14
!
interface FastEthernet0/15
!
interface FastEthernet0/16
!
interface FastEthernet0/17
!
interface FastEthernet0/18
!
interface FastEthernet0/19
!
interface FastEthernet0/20
!
interface FastEthernet0/21
!
interface FastEthernet0/22
!
interface FastEthernet0/23
!
interface FastEthernet0/24
switchport mode trunk
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
no ip address
shutdown
!
!
!
!
line con 0
!
line vty 0 4
login
line vty 5 15
login
!
!
!
end
PC1 has the following configurations:
IP: 192.168.2.1
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.2.254
PC2 has the following configurations:
IP: 192.168.3.1
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.3.254
Wireless Router has the following configurations:
Default Gateway: 192.168.1.254
IP Address: 192.168.1.1
Subnet Mask: 255.255.255.0
The laptop is getting dhcp from the wireless router.
Everyone should talk to anybody. Both PCs talk to each other and the laptop can reach the PCs. But I can't figure what is needed to make the PCs talk to the laptop or ping the wireless router successfully.
Here is my packet tracer 7 file: exercise_pkt
show running-configuration
command on each device, copy the the full configurations, paste them into the question, and use the Preformatted Text feature ({}
). We need to see the full configurations. For instance, we don't see your trunk configuration. There are also other configurations that may affect this, but you have not provided them. Give us everything.description
command on the interfaces. For example, you have no way to tell which of the three trunks on Switch 1 goes to which other network device. Also, there is no trunk on Switch 0. That means you are using DTP to determine the trunk, and that really isn't a good practice.