10-03-2012 11:43 PM - edited 03-07-2019 09:16 AM
Hi All,
I recently setup new 3750x switches in my network and created vlans to expand my network. I assigned an interface Gi1/0/1 ip 192.168.1.253 so it act as an gateway for my VLANs. The vlan works fine in this case but only problem is that my default vlan 1 does not have any connectivity. What have i done wrong? i have attached the config of my switch. Thanks for your help.
interface GigabitEthernet1/0/1
description Default Gateway for VLAN
no switchport
ip address 192.168.1.253 255.255.255.0
!
!
interface GigabitEthernet1/0/2
switchport mode access
speed 1000
duplex full
!
interface GigabitEthernet1/0/3
!
interface GigabitEthernet1/0/4
!
interface GigabitEthernet1/0/5
!
interface GigabitEthernet1/0/6
!
interface GigabitEthernet1/0/7
!
interface GigabitEthernet1/0/8
!
interface GigabitEthernet1/0/9
!
interface GigabitEthernet1/0/10
!
interface GigabitEthernet1/0/11
!
interface GigabitEthernet1/0/12
switchport access vlan 4
switchport mode access
!
interface GigabitEthernet1/0/13
switchport access vlan 2
switchport mode access
speed 100
duplex full
!
interface GigabitEthernet1/0/14
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/15
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/16
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/17
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/18
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/19
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/20
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/21
switchport access vlan 2
switchport mode access
power inline port priority high
flowcontrol receive on
!
interface GigabitEthernet1/0/22
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/23
description ***Trunking Ports***
switchport trunk encapsulation dot1q
switchport mode trunk
speed 1000
duplex full
!
interface GigabitEthernet1/0/24
description ***Trunking Ports***
switchport trunk encapsulation dot1q
switchport mode trunk
speed 1000
duplex full
!
interface GigabitEthernet1/1/1
description ***Uplink-to-Warehouse-Cisco3750G***
switchport trunk encapsulation dot1q
switchport mode trunk
udld port
storm-control multicast level 50.00
!
interface Vlan1
no ip address
!
interface Vlan2
ip address 192.168.2.254 255.255.255.0
ip helper-address 192.168.1.101
!
interface Vlan4
ip address 192.168.4.254 255.255.255.0
ip helper-address 192.168.1.101
!
interface Vlan8
no ip address
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.255.1
ip route 192.168.0.0 255.255.0.0 192.168.1.254
ip route 192.168.1.0 255.255.255.0 192.168.1.254
ip http server
ip http secure-server
!
ip sla enable reaction-alerts
!
!
line con 0
line vty 0 4
password bmw328i
login
line vty 5 15
password bmw328i
login
!
end
10-04-2012 12:02 AM
HI Jayden,
Why are you using IP ADDRESS for interface GigabitEthernet1/0/1.
Instead you can use this address for int vlan 1 and then make shut, not shut.
Try this :
Int gig1/0/1
No ip address
no duplex full
int vlan 1
ip address 912.168.1.253 255.255.255.0
ip helper-address 192.168.1.101
Reagrds
please rate if it helps.
10-04-2012 07:52 AM
Just as a note here, I'd recommend you NOT use vlan 1 for your configuration. Though it may not be of immediate concern to you for this task, it is a good practice to keep that vlan shut down and pruned from trunk links. Since you aren't explicitly defining a vlan as native on your trunk, the switch defaults to vlan 1 as native, which exposes you to some security vulnerabilities.
I know, I know.....that's outside the scope of what you're trying to get done, but it's good to know for future reference.
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