ESXi 6.0 networking help

[Sir Asvald]

Hello everyone. I've got ESXi 6.0 running and I want one of my VM to be on the 2 networks. Network 1 has an IP subnet of 192.168.1.0 and network 2 has IP subnet of 172.16.105.0. I'm trying to add secondary network card, but when i do, it uses the 172.16.105.0 network and not the 192.168.1.0. How would I go about fixing it?

[leadeater]

32 minutes ago, Abdul201588 said:

Hello everyone. I've got ESXi 6.0 running and I want one of my VM to be on the 2 networks. Network 1 has an IP subnet of 192.168.1.0 and network 2 has IP subnet of 172.16.105.0. I'm trying to add secondary network card, but when i do, it uses the 172.16.105.0 network and not the 192.168.1.0. How would I go about fixing it?

Only set a default gateway for the primary network adapter, never specify another one on a different interface otherwise Windows gets stupid and confused. Also use powershell to set the interface metric, lower number for the one you want to be primary.

https://www.ghacks.net/2016/12/02/change-network-adapter-priorities-in-windows-10/ (applies to more than Windows 10)

 

Then if you need any network traffic to go out the secondary adapter but is not on that same subnet so needs to be routed use route add cmdlet to setup a route entry.

 

Why do you need the second network adapter btw, direct connection using 10Gb?

 

Edit:

If Linux and not Windows same rules apply, just convert steps to Linux.

[leadeater]

Also I'm assuming you have setup another vSwitch on the ESXi host and added the other physical NIC to it? Or you are using VLANs and have correctly created a new port group and set the correct VLAN ID?

[Sir Asvald]

1 hour ago, leadeater said:

Only set a default gateway for the primary network adapter, never specify another one on a different interface otherwise Windows gets stupid and confused. Also use powershell to set the interface metric, lower number for the one you want to be primary.

https://www.ghacks.net/2016/12/02/change-network-adapter-priorities-in-windows-10/ (applies to more than Windows 10)

 

Then if you need any network traffic to go out the secondary adapter but is not on that same subnet so needs to be routed use route add cmdlet to setup a route entry.

 

Why do you need the second network adapter btw, direct connection using 10Gb?

 

Edit:

If Linux and not Windows same rules apply, just convert steps to Linux.

 

5 minutes ago, leadeater said:

Also I'm assuming you have setup another vSwitch on the ESXi host and added the other physical NIC to it? Or you are using VLANs and have correctly created a new port group and set the correct VLAN ID?

I got it to work. I removed the 3 NICs from the management side. Created 3 separate vSwitches. One, is DMZ, outside and inside.