Howto connect DD-WRT OpenVPN client to Asus Merlin OpenVPN server

[lbradio]

Hi,

I need some help here:

I've got 2 ASUS RT-AC68U:
- Merlin 3.0.0.4.374.41_0
- DD-WRT Kongs Build 23884M

DD-WRT router is in wireless repeater mode.

I would like to use the OpenVPN server on Merlin, and OpenVPN client op DD-WRT, but I'm a little bit stuck on the setup.
Where should I put which certificate, what is the best setup?

Does anyone has this running and is willing to help me a bit?

(fyi, OpenVPN client on a Windows laptop is running perfect, but is only using client certificate)

Tx.

 

[lbradio]

Still stuck on this issue.
Any tip to start with?

Tx.

 

[sinshiva]

post a screenshot of the ddwrt openvpn client interface with advanced options enabled

 

[lbradio]

post a screenshot of the ddwrt openvpn client interface with advanced options enabled

 

[sinshiva]

what are the drop down options for hash algorithm? i'm not sure if that's used without TLS.

NAT probably needs to be enabled.

if you don't know what your tunnel mtu setting should be, you may want to add the line 'tun-mtu 1400' in the advanced config field on the asus.

you will likely need to copy the CA cert from the asus to the CA Cert field of ddwrt along with the static key in the field above it.

you may want to add the line 'float' to the advanced config in ddwrt

you should probably enable MSS-fix and add the line 'mssfix' in the advanced config of the asus along with 'fragment 1396' (4 bytes less than MTU) and enable it with the same value in ddwrt

the IP information should be pushed by the server. hopefully this gets you a little further

 

[Majinken]

Hi, were you able to resolve this? I am also interested in doing this. Note that both routers are located on totally different locations.

 

[octopus]

You post in 8 year old thread.

 

[egc]

DDWRT has a client import utility so basically just import the conf file