OpenWrt openvpn

Installing and Using OpenWrt
43

op3

dev tun0
;proto tcp
proto tcp4
port 1001
proto tcp-server
comp-lzo yes
keepalive 10 60
verb 3
secret /etc/openvpn/static.key
push "route 192.168.2.0 255.255.255.0 vpn_gateway
#ca /etc/openvpn/ca.crt
#dh /etc/openvpn/dh1024.pem
#cert /etc/openvpn/server.crt
#key /etc/openvpn/server.key
#status-version 2
log /etc/openvpn/openvpn0.log
status /etc/openvpn/server.status
#tls-auth /etc/openvpn/ta.key 0
# Custom Configuration
#auth-user-pass-verify /etc/openvpn/checkpsw.sh via-env
#client-cert-not-required
#username-as-common-name

op5

dev tun0
;proto tcp
proto tcp4
proto tcp-client
remote 192.168.237.202 1001
comp-lzo yes
keepalive 10 60
verb 3
secret /etc/openvpn/static.key
#ca /etc/openvpn/ca.crt
#dh /etc/openvpn/dh1024.pem
#cert /etc/openvpn/server.crt
#key /etc/openvpn/server.key
#status-version 2
log /etc/openvpn/openvpn0.log
status /etc/openvpn/server.status
#tls-auth /etc/openvpn/ta.key 0
# Custom Configuration
#auth-user-pass-verify /etc/openvpn/checkpsw.sh via-env
#client-cert-not-required
#username-as-common-name

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46

I can only repeat my recommendation. Remove all files and start with clean config following the configuration in the wiki.
And also further if your goal is LAN to LAN VPN the recommendation in 2022 is Wireguard

47

'dev tun0' has been specified. Maybe 'tap' device was recommended.

49

Not related to this thread but I can not understand how the protocol used to establish the VPN would have any impact to PBR (routing)?

50

For OpenVPN I can easily configure both client, and server on the same device. But for Wireguard it is not possible.

51

As I wrote earlier this is offtopic of this thread. But you didn't replied to my question but just wrote another wrong statement

Every Wireguard node is automatically server and client so you definitely have server and client on one device when using Wireguard.

52

OK, I have server with real IP, running OpenVPN-client. How can I configure it to run as 'wireguard-server' to route all traffic to OpenVPN?

Server is server, it is node with real IP. Client is client, it is node, having connection to Internet.

53

As mentioned offtopic discussion which we should stop here. But just for record all traffic to one peer (server) in wireguard is achieved with "AllowedIPs = 0.0.0.0/0"