On 2017-06-02, Dario Lesca <d.lesca(a)solinos.it> wrote:
Yesterday I have update my fedora 25 and after reboot VPN l2tp+ipsec
not work anymore.
The connection happens without problem, the routing are set correctly,
the DNS (UDP protocol) and ping (ICMP protocol) to remote host work.
Only the access to some server, like ssh or smb:// (TCP protocol) do
not work, in this case, if I monitoring on remote server with tcpdump,
If I reboot with previous kernel (4.10.17) all work fine.
Is MTU path discovery broken? I.e. IP packets bigger then MTU of the
tunnel do not pass. You can try to send ICMP packets with bigger and
bigger size while don't-fragment bit is set. You can use ping tool for