Dear all,
got a little headache with a OpenVPN Site-to-Site tunnel.
- RTT between OpenVPN server and client is a sweet 1.3ms peak
- 5km fibre between Site A and B, attached to 10G SFP+ ontwo identical, externally controlled, switches on both sides (Cisco 2960X). At least I know the admin, so I can get back to him.
- Next to no reflection or anything else according to the companys test protocol who burried the fibre cable.
- On both sites are up to date pfSense firewalls running the OpenVPN client (Site B, virtual on Hyper-V 2012R2) and server (Site A, older physical box). The Hyper-V box isn't running anything else at the moment.
- pfSense on Site A is directly connected to a 1G port of that 2960X
- pfSense on Site B has a small switch in between, but nothing else expect that Hyper-V box and a management PC. That small switch is a Cisco SG300, got...