nat64 causing problems

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raincity23
OpenVpn Newbie
Posts: 1
Joined: Thu Apr 01, 2021 6:18 pm

nat64 causing problems

Post by raincity23 » Thu Apr 01, 2021 6:36 pm

Hi,

I'm using OpenVPN Connect (3.2.4 5891) on Android 11 connecting to OpenVPN 2.5.0 (asus-merlin arm build) that is running on a public IPv4 address at home. I'm looking to just access local resources at home on 192.168.1.0/24 when connected via VPN.

The client connects successfully, however in the UI under Server Public IP, it says '64:ff9b::cf51:xxxx' which is the correct IPv4 address shown in IPv6 format.

This causes problems as my services use public DNS names: service1.home.mydomain.com, service2.home.mydomain.com, etc) which return IP's in 192.168.1.0/24 namespace from public resolvers. However, you can not embed 192.168.1.0/24 IP's in 64:ff9b:: IPv6 format so anything using these domains fail.

So how can I get the OpenVPN Connect app to connect directly with IPv4, instead of using the IPv6 translator? I went into Settings and tried setting IPV4-Only Tunnel under IPv6, but that didn't seem to make any changes.

Thanks for any help!

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