Don't receive ARP reply in vlan.

[Vitalii]

Hello. I have Cisco L3 switch wich connected to ESXI via trunk and I have two vlans for servers. VM In Vlan 10 trying to connect to others VM in Vlan 10 but I can't receive ARP reply from others VM and gateway in Vlan 10. But if I switch this VM to Vlan 20 everything works fine. Can you help me to solve this issue?

[balaji.bandi]

how is your port configuration on the switch ? is the VLAN 20 or VLAN 10 is native VLAN ?

[Vitalii]

Port setup as trunk. Vlan 1 is native. Other VM in vlan 10 has IP address and I can ping these VM but only new VM has problem with ARP.

[balaji.bandi]

Can you provide the switch side config the port connected to Esxi and what is the New VM ? Windows or Linux ?

[Vitalii]

switch config for ports that connected to esxi
interface GigabitEthernet1/33
switchport
switchport mode trunk
switchport trunk allowed vlan 10,20
speed 1000
duplex full

interface GigabitEthernet2/33
switchport
switchport mode trunk
switchport trunk allowed vlan 10,20
speed 1000
duplex full

New VM - Windows. I have a couple of VMs in VLAN 10 which work fine. I created new windows vm and connected to vlan 10.

[Vitalii]

windows vm has static ip address. All the vms has static ip addresses.

[balaji.bandi · Accepted solution]

If other Windows VM able to send ARP entries to switch, and only New VM not sending ARP requests, i will investigate on VM Side also look at Esxi shell level?

[Vitalii]

I've chaneged Windows 7 to Windows 10 and problem has solved. Thank you!

[Deepak Kumar]

Hi,

What are the switch port configuration and EXSi host's network configuration?