Use PMTUD to set the MTU to the VPN interface

- Add `VPN_PMTUD` option enabled by default - One can revert to use `VPN_PMTUD=off` to disable the new PMTUD mechanism
2025-09-10 14:43:21 +00:00
parent e21d798f57
commit 162d244865
12 changed files with 141 additions and 25 deletions
--- a/internal/vpn/interfaces.go
+++ b/internal/vpn/interfaces.go
@@ -81,6 +81,7 @@ type Linker interface {
 	LinkDel(link netlink.Link) (err error)
 	LinkSetUp(link netlink.Link) (linkIndex int, err error)
 	LinkSetDown(link netlink.Link) (err error)
+	LinkSetMTU(link netlink.Link, mtu int) (err error)
 }

 type DNSLoop interface {