Re: [Openvpn-users] How to determine the correct MTU/fragment value in OpenVPN 2.6

2023-08-01 Thread Niccolò Belli
Il 2023-07-30 19:55 Niccolò Belli ha scritto: yet the Tiscali connection behaves weirdly: for example clients most of the times don't receive the gateway from the dhcp (certain clients like the Amazon Fire Stick never do, yet they work fine with static IP). This doesn't happen with

Re: [Openvpn-users] How to determine the correct MTU/fragment value in OpenVPN 2.6

2023-07-31 Thread Niccolò Belli
Il 2023-07-29 19:41 tincantech ha scritto: In future, the only valid target is your server (or client). I am not interested in comparing your various network paths. Establish a well known MTU on a well known path, first. [tiscali ~]$ ping -M do -s 1432 -c 1 PUBLIC_SERVER_IP PING PUBLIC_SERVER

Re: [Openvpn-users] How to determine the correct MTU/fragment value in OpenVPN 2.6

2023-07-29 Thread Niccolò Belli
Il 2023-07-29 18:13 tincantech ha scritto: My analysis of your test data, reduces to the following comment: Personally, I do not consider Google to be a valid target to test against. The value of PMTU, or Path MTU, is really only valid between your source location and your destination locatio

Re: [Openvpn-users] How to determine the correct MTU/fragment value in OpenVPN 2.6

2023-07-29 Thread Niccolò Belli
Il 2023-07-24 13:23 tincantech ha scritto: If your PMTU is changing "on a daily basis" then you should probably report that as a fault to your Internet Service Provider(s). Forgot what I've written before: I've did many more tests and apparently my connection(s)' MTU is not changing but somet

[Openvpn-users] How to determine the correct MTU/fragment value in OpenVPN 2.6

2023-07-21 Thread Niccolò Belli
I'm using Debian 12 Bookworm with OpenVPN 2.6.3 on the server and Arch Linux with OpenVPN 2.6.5 [git:makepkg/cbc9e0ce412e7b42+] on the client. This is the server config (I need a Layer 2 tunnel unfortunately): port 1194 proto udp dev tapvpn ca /etc/openvpn/server/ca.crt cert /etc/openvpn/server