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IPSEC VPN Starlink speed issues
Hi, I am using a Starlink Bussiness with public IP, to create a VPN between a Mikrotik to a FG1500D.
Without the VPN on the, a laptop connected to the Mikrotik on site can reach 250/50 Mbps (Minimum 80/15 Mbps); but with the VPN Stablished the speed down to maximim 15/10 Mbps.
The connection is
Laptop <--> Mikrotik RB960 <--> Starlink <--> Internet <--> F1500D <--> Internet
I tried changing the MTU, but nothing happen, I know that satellite system use tcp spoofing optimization techniques, but i cant confirm with starlink if thta feature is on his plattform and if this affect the VPN.
Somebody had the same issue?
Thanks in advanced
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I could keep on testing, but I don't think they will solve the problem. so for me starlink works fine for web connections but not for vpn.
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tcp-mss settings for vpn not afftecs internet access performance, this very happen, when you create ipsec vpn some tcp-mss or mtu settings may affect the network speed like file transfer between local and remote network...
internet connection is perfect not mean it will provide enought condition for vpn .
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We had the same speed issue when using starlink. Changed our fortigate policies from Proxy to Flow based and started getting full speeds. Hope this helps someone else.
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Hi,
Have you tried to put a switch in between?
APAC TAC

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