#Mullvad split tunneling manual
#Mullvad split tunneling windows

This is achieved by having rules that check if traffic is marked with a connection tracking mark (0x00000f41) to get through the firewall and a meta mark (0圆d6f6c65) to route the traffic outside the tunnel. Allowing specific IPs through our firewallĪs our Mullvad app for Linux allows for split tunneling on a per-application basis, we have had to adjust our firewall rules to allow some connections to be routed outside our tunnel. The end result is that whoever controls both and can observe that seemingly the same user is sending requests from 2 different IP addresses simultaneously, so the tunnel exit IP address can be linked to user's real IP address. Since and can resolve to 2 different addresses, the traffic to can still be routed through our tunnel. Consider the following scenario: you exclude IP addresses that points to from the tunnel and then attempt to visit a website on in a web browser, and as the page is being loaded, the HTML document requests various scripts and images from. Also, excluding some IP addresses and not others can lead to de-anonymization attacks. ExampleĪpplying these rules will also allow the excluded IP to be reached when our app is in its blocked state. Rules in a safe environment if you must ensure your privacy at all times. As such, exercise extreme caution and preferably test your However, the language has no guard-rails, and having syntactically correct rules that netfilter will load without emitting any error messages doesn't ensure that the rules will achieve your expected behavior, and they can in fact be detrimental to your privacy. Netfilter allows for a very expressive language to be used for defining firewall rules, which is great. The nftables package is available on Fedora, Ubuntu and Debian, and most likely on any other mainstream Linux distribution. To set up your user defined firewall rules, the host needs to have the nft tool available. - Allowing incoming traffic (for servers)Įxcluding specific IP addresses Prerequisites.Allowing specific IPs through our firewall.

#Mullvad split tunneling manual

However if you want to exclude specific IP addresses or ports, manual configuration is required. It allows you to exclude some apps from the VPN so they will use your regular Internet connection.

#Mullvad split tunneling windows

The Mullvad app for Android, Linux and Windows has a split tunneling feature.