Route Only NetBIOS Traffic Over VPN

mikestitch

I would like to use OpenVPN to connect our remote Windows users to our company Active Directory domain. How do I configure the Windows OpenVPN client to only send NetBIOS/domain traffic over the VPN while sending all other traffic over the user's local internet connection?

maikcat

How do I configure the Windows OpenVPN client to only send NetBIOS/domain traffic over the VPN while sending all other traffic over the user's local internet connection?

first its not openvpns job to decide which traffic is sent where,

openvpn creates just another network adapter so its OS job to perform such a task.

if by saying "netbios traffic" you mean netbios broadcasts that you should use TAP and maybe bridge mode.
i would recommend using wins and AD dns services since AD does not rely on broadcasts but is uses
SRV dns records to discover where dns,kerb5 services are located.

Michael.

mikestitch

Thanks for your reply. So are you saying there's no way to control how traffic is routed? It's either all traffic, including NetBIOS, over the VPN or none? I was under the impression there was a means to control what traffic is routed over OpenVPN.

Traffic

OpenVPN does not filter on any level ..

Other factors can effect operation: eg Tun vs Tap .. and routing :geek:

Otherwise, to filter packets you can use a firewall like iptables