> On 6. Jul 2024, at 18:13, Patrick M. Hausen <hau...@punkt.de> wrote: > > Hi all, > >> Am 06.07.2024 um 18:07 schrieb Andrea Venturoli <m...@netfence.it>: >> It's almost surely due to a problem with the UDP packets that implement the >> VPN: again, according to tcpdump they go out host B, but never reach host A. > > Is it remotely possible that one of the ISPs blocks these UDP packets as part > of an automatic "DoS protection" mechanism? Or are any kind of NAT or Firewall involved which might loose state? Are you using public addresses on host A and B?
Best regards Michael > > Kind regards, > Patrick > -- > punkt.de GmbH > Patrick M. Hausen > .infrastructure > > Sophienstr. 187 > 76185 Karlsruhe > > Tel. +49 721 9109500 > > https://infrastructure.punkt.de > i...@punkt.de > > AG Mannheim 108285 > Geschäftsführer: Daniel Lienert, Fabian Stein >
