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I have an IPSEC tunnel established between two sites that are within 30ft of each other (the buildings are next door). Both sites get 100Mbps down / 10 Mbps up. I setup an IPSEC tunnel between both sites using the default configuration of DefaultHeadOffice and DefaultBranchOffice in the IPSEC settings. I have policies allowing LAN to VPN and VPN to LAN. Everything is all pretty basic.
Once I setup the tunnel, I tried to do a simple file transfer of one 20MB file between a branch workstation and a server at Head Office. It transferred the file at a speed of 0.7Mbps. Considering both sites get 10Mbps upload, and given some overhead for the VPN tunnel, I would expect the speeds to be at least 7 or 8 Mbps, not 0.7.... Does anyone else have any experiences of insanely slow site-to-site IPSEC tunnels or have any recommendations?
The Head Office has an XG125 and remote office has an XG105 running MR2. Both are at 50% memory usage and between 0-10% CPU usage.
In reply to scaledem:
there are any updates from the support?
In reply to Stefano27383:
I am also curious as to what support has to say on this. What are some speeds that others are getting from Site to Site Ipsec tunnels and SSL VPN Tunnels?
In reply to ThomasKilgore:
Please DM us the case ID so we may check the issue, we would require our support to investigate this issue.
Our issue turned out to be HA MTU based. We're using a simple router to handle VDSL for a HA configuration. We had to reduce the MTU on the Sophos WAN ports that connect to that router. We'd moved to Site to Site SSL VPNs that worked around the performance issue, but now they're back on IPSEC they're working fine.