setup Cisco 3750 problem

Answered Question
Aug 21st, 2008

Hi,


I'm trying to setup the Cisco 3750 switch but I just couldn't get the PC on port 2 (no VLAN set PC IP to 10.12.10.2.24) and PCs on VLAN 30 to reach the Internet.


Hope someone can assist, thanks.



Building configuration...


Current configuration : 1815 bytes

!

version 12.2

no service pad

service timestamps d

service timestamps log uptime

no service password-encryption

!

hostname 3750

!


ip subnet-zero

ip routing

!

!

spanning-tree mode pvst

no spanning-tree optimize bpdu transmission

spanning-tree extend system-id

!

interface FastEthernet1/0/1

no switchport

ip address 10.12.10.251 255.255.255.0

!

interface FastEthernet1/0/2

no switchport

no ip address

!

interface FastEthernet1/0/3

no switchport

no ip address

!

interface FastEthernet1/0/4

!

interface FastEthernet1/0/5

!

interface FastEthernet1/0/12

!

interface FastEthernet1/0/13

switchport access vlan 30

!

interface FastEthernet1/0/14

switchport access vlan 30

!

interface FastEthernet1/0/15

switchport access vlan 30

!

interface FastEthernet1/0/16

switchport access vlan 30

!

interface FastEthernet1/0/17

switchport access vlan 30

!

interface FastEthernet1/0/18

switchport access vlan 30

!

interface FastEthernet1/0/19

!

interface FastEthernet1/0/23

!

interface FastEthernet1/0/24

description 802.1q trunk To 3560

switchport trunk encapsulation dot1q

!

interface GigabitEthernet1/0/1

!

interface GigabitEthernet1/0/2

!

interface Vlan1

no ip address

shutdown

!

interface Vlan30

ip address 10.12.30.251 255.255.255.0

!

ip classless

ip route 0.0.0.0 0.0.0.0 10.12.10.252

ip http server

!

!

!



Correct Answer by sachinraja about 8 years 6 months ago

Hello


with regards to port 2, its in default vlan 1, and vlan 1 is shutdown on layer 3.. hence you will not be able to browse internet thro port 2. you assign the port onto a different vlan and create layer 3 vlan interfaces to enable routing or configure vlan 1 with IP address. with vlan 30, what is the default gateway of the PC ? is 10.12.10.252 the internet router ? Are there reverse routes on the router pointing back to the layer 3 switch for reachability to VLAN 30 ? Are there any NAT statements configured ?


Let us know


Raj

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Correct Answer
sachinraja Thu, 08/21/2008 - 21:19

Hello


with regards to port 2, its in default vlan 1, and vlan 1 is shutdown on layer 3.. hence you will not be able to browse internet thro port 2. you assign the port onto a different vlan and create layer 3 vlan interfaces to enable routing or configure vlan 1 with IP address. with vlan 30, what is the default gateway of the PC ? is 10.12.10.252 the internet router ? Are there reverse routes on the router pointing back to the layer 3 switch for reachability to VLAN 30 ? Are there any NAT statements configured ?


Let us know


Raj

dinesh.das Thu, 08/21/2008 - 21:32

which port 2 u r talking about.


it is interface FastEthernet1/0/2 or

interface GigabitEthernet1/0/2


first one is no switchport, second one is shutdown.

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