Vlan 1 connectivity issue

[ramith]

we have a cisco server with vmware installed, hosting various entities like prime infrastructure, ISE in different vlans

vlan 20 is used for vmware management, only one link is connected to server

the configuration of the switch ports includes

switchport trunk native vlan 20

switchport mode trunk

vlan dot1q tag native

so vlan 1 is not communicating from all the hosts in the server 

please provide a solution for it

[MHM Cisco World]

from your config 
switchport trunk native vlan 20

switchport mode trunk

vlan dot1q tag native

1-the trunk allow all VLAN 
2- the native is VLAN20 
3- the native vlan 20 is tag

so what is your issue can you more elaborate 
MHM

[ramith]

the issue is we are using cctv cameras in vlan 1, and one NMS is installed in the sever

i need to add and monitor cameras from NMS but im not able to ping from NMS to cameras

the switch is not allowing vlan 1  

[Georg Pauwen]

Hello,

post the running config of the switch and (if the switch is not doing the inter-Vlan routing), the running config of the device that does the inter-Vlan  routing.

[MHM Cisco World]

I dont exactly what issue here 
but 
share 
show interface trunk 
MHM

[MHM Cisco World]

I will pass one step 
I will assume that there are two native vlan in SW 
one is vlan 20 and other vlan 1
in that case you need 

switchport mode trunk
switchport trunk allow vlan 20 

this make SW tag vlan 20 to server and not use it as native 

in end you must ensure that there is only one native in SW

MHM

[paul driver]

Hello
Native vlan is interface specific NOT switch , so you could have multiple native Vlans on various trunk interconnects of the same switch if you wish

Basically what you are doing here is securing the native vlan 20 ( by default untagged when set to native)  by tagging it on that trunk facing the server , however vlan 1 by default is untagged, so:

• Make sure the server is also tagging vlan 20 native
• The switch trunk towards the server is allowing vlan 1
• The switch trunk uplinks to is allowing vlan 1

[ramith]

in the switch im able to use vlan 1 if no configuration on a port, but in trunk ports im not able to get vlan 1

[ramith]

this is the show interface trunk command on port that connected to server

[Georg Pauwen]

Hello,

post the running config (sh run) SERVER_FARM_24P...

[ramith]

this is the network configuration on server. 

[alexanderat226]

It seems like there might be an issue with VLAN 1 communication from the hosts in the server. Here are some steps you can take to troubleshoot and potentially resolve the problem:

1. Check VLAN Configuration on VMware Server: Ensure that the VLAN configurations on the VMware server match the VLAN settings on the switch. Verify that the appropriate VLANs are assigned to the virtual machine network adapters.

2. Verify Trunk Configuration: Double-check the trunk configuration on the switch port connected to the VMware server. Confirm that it allows traffic for VLAN 1 and VLAN 20. Use the following command to verify:

   csharpCopy code

   show interface <interface-id> trunk

3. Check VLAN 1 Status on the Switch: Confirm that VLAN 1 is active on the switch. You can check the VLAN status using the following command:

   sqlCopy code

   show vlan

4. Verify VMware vSwitch Configuration: Ensure that the VMware vSwitch is configured to allow traffic for VLAN 1. Check the vSwitch settings and the VLAN ID assigned to the virtual machines.

5. Verify VM Network Adapter Settings: Check the network adapter settings of the virtual machines hosted on the VMware server. Confirm that they are configured with the correct VLAN settings.

6. Review Security Policies: Check if there are any security policies or access control lists (ACLs) that might be blocking traffic on VLAN 1. Review the switch and VMware server security settings.

7. Test Connectivity: Use tools like ping to test connectivity between hosts in VLAN 1 and the VMware server. This can help identify if the issue is related to network connectivity.

8. Update Firmware/Software: Ensure that the firmware/software on both the switch and the VMware server are up-to-date. Sometimes, updating to the latest versions can resolve compatibility issues.

By carefully reviewing and adjusting the configurations on the switch and VMware server, you should be able to troubleshoot and resolve the communication issue for VLAN 1.

[ramith]

In Vlan 1 the port connected to server is not showing 

the port is   Te1/0/24

[MHM Cisco World · Accepted solution]

1-the port not appear in show vlan if the port is trunk 

2- the SW must have one native vlan and I see two so this make connection issue 
so you need to make trunk to ISE config as below 

switchport mode trunk
switchport trunk allow vlan 20,1 
switchport trunk native vlan 1 

MHM

[paul driver · Accepted solution]

Hello

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@ramith wrote:
cisco server with vmware installed, hosting various entities like prime infrastructure, ISE in different vlans

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From the switches output the configuration looks okay , however I do not see the various vlans on the server you state you have created?