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Hi Guys
I have one switch 3750 and two switches 2960. I started VTP and DHCP. But when I connect the computers to the switches after they get a proper IP from DHCP, they can not ping each other. Whether they are in the same VLan or devices have different VLans. In Packet Tracer, everything is correct and the devices ping each other. But this choice does not fall on the physical switch. I put the switches config file. Please tell if there is a mistake and if there is a way to improve. And what can I do to make VLans have access to each other and fix this problem?
3750 :
enable configure terminal hostname SW-Core ip default-gateway 10.10.10.1 ip domain-name F13 vtp mode server vtp domain F13 vtp version 2 vtp pruning enable secret Hadi@123 line vty 0 15 password Hadi@123 login exit line console 0 password Hadi@123 login exit VLan 10 name Core exit VLan 31 name F3N exit VLan 32 name F3S exit interface vlan 10 ip address 10.10.10.1 255.255.255.0 no shutdown exit interface vlan 31 ip address 10.10.31.1 255.255.255.0 no shutdown exit interface vlan 32 ip address 10.10.32.1 255.255.255.0 no shutdown exit ip routing interface range gigabitEthernet 1/0/1-6 switchport trunk encapsulation dot1q switchport mode trunk switchport trunk allowed vlan 1-99 no shutdown exit interface range gigabitEthernet 1/0/7-12 switchport mode access switchport access vlan 10 no shutdown exit interface range gigabitEthernet 1/0/13-24 shutdown exit ip dhcp pool Core network 10.10.10.0 255.255.255.0 default-router 10.10.10.1 dns-server 10.10.10.2 lease 21 exit ip dhcp pool F3N network 10.10.31.0 255.255.255.0 default-router 10.10.31.1 dns-server 10.10.10.2 lease 21 exit ip dhcp pool F3S network 10.10.32.0 255.255.255.0 default-router 10.10.32.1 dns-server 10.10.10.2 lease 21 exit ip dhcp excluded-address 10.10.10.1 10.10.10.10 ip dhcp excluded-address 10.10.31.1 10.10.31.10 ip dhcp excluded-address 10.10.32.1 10.10.32.10 exit exit write
One of the 2960 switches :
enable configure terminal hostname SW-F3N vtp mode client vtp domain F13 enable secret Hadi@123 line vty 0 15 password Hadi@123 login exit line console 0 password Hadi@123 login exit interface gigabitEthernet 0/24 switchport mode trunk no shutdown exit interface range gigabitEthernet 0/21-23 shutdown exit interface range gigabitEthernet 0/1-20 switchport mode access switchport access vlan 31 no shutdown exit exit write
Solved! Go to Solution.
Can you post both the devices below information :
show vtp status
show vlan
other observation based on your input.
- But even in VLAN 10, which is on the 3750 switch, when two devices receive IP from DHCP, they still can not ping each other.
BB - if the Device to device has communication (i am guessing based on above statement) - Windows FW is the issue, disable Windows FW and test.
Gateway of last resort is not set
BB - is this Device no outgoing internet or is this just inside the office network.
high level my understand is - you have Core switch which has no connection anywhere to go to the internet, all the SVI VLAN configured and they able to communicate each other ? and you have added Layer 2 switch - but end device not able to communicate with the devices connected in the Core switch.