I wanted to migrate my home L2TP/SSTP VPN to IKEv2 according this official example. But I’m sharing IP network (same IP pool) for LAN and VPN (using proxy-arp). I tried to setup in IKEv2, but it didn’t work, because router didn’t set dynamic routes for connected users. If I set route(s) manually, proxy-arp started working like in case of L2TP/SSTP VPN.
One workaround is using dedicated sub-subnet (/28) for IKEv2 VPN and set route manually for this sub-subnet. But it would be better to have possibility to set route dynamically and automatically by router during user connection. Similar behaviour like in case of PPP links.
