RV340 Port Forwarding

[323techs]

Ive enabled port forwarding on the RV340W for L2TP 1701, ISEC-UDP-ENCAP 4500, and ISAKMP 500 

External Service                                          Internal Service                  Internal IP                       interfaces

L2TP UPD 1701                                          same                                 192.1681.10                  any

IPSEC-UDP-ENCAP UPD 4500                   same                                 192.168.1.10                 any

ISAKMP UPD 500                                        same                                  192.168.1.10                any

and rebooted

When i go to canyouseeme.org - I receive an error that the service is not available. I think its pretty straight foward - but not working any suggestions? 

[Georg Pauwen]

Hello,

I assume your are trying to set the RV340 up as an L2TP server ?

The first thing I would check is if the client you are testing this from is not blocking any of the ports (e.g. Windows Firewall...)

[323techs]

Hey Georg,

I am actually setting up our Windows 2019 Server as the L2TP server. I am having issues with anyconnect licenseing from Cisco and trying to set this up as a temporary solution. Windows firewall is disabled and ports are not being blocked on the client end. 

[paul driver]

Hello

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@323techs wrote:

Ive enabled port forwarding on the RV340W 

When i go to canyouseeme.org - I receive an error that the service is not available. I think its pretty straight foward - but not working any suggestions? 

---

On what port are you trying to access that URL on, I assume its internal to your network, instead of using the fqdn have you tried accessing it via ts public(external) adddress 

[323techs]

I am actually just trying to configure those ports on the rv340W - I am setting up our W 2019 Server as the VPN server to conenc through. I have Defender disabled on the server but am still not able to get these ports to resolve. 

[paul driver]

Hello

Can you elaborate on the vpn server and what will this be servciing?

[Georg Pauwen]

Hello,

how did you actually set up the L2TP server functionality (apart from the port forwarding) ? Like in the short video below ?

https://www.youtube.com/watch?v=SIMP0Y-mji4

[nagrajk1969]

Hi

Try the below:

1. First delete ALL the port-forwarding rules (for ike-udp-500/isakmp/ike-udp-4500/l2tp) and do a apply/save

2. Next enable/configure "DMZ Host" under Firewall, and give the ipaddress of your internal l2tp-ipsecserver, and apply/save

3. Now from wan-side try the l2tp-ipsec tunnel connection to the internal-server, by giving the destination as the wan-ipaddress ofcourse