Udm vpn behind nat. Reply reply More replies More replies .

Udm vpn behind nat Teleport is a zero-configuration VPN that allows you to instantly connect to your UniFi network from a remote location. I have a public WAN IP that is registered to mydomain. UniFi gateways use Route-Based VPNs by default. The only type of VPN on the udmp vpn server setup page is L2TP. Type: Next Hop Next Hop: 192. Trying to do a L2PT/IPsec vpn and I'm trying to connect to our This security appliance is behind a VPN-unfriendly NAT, which can be caused by upstream load balancers or strict firewall rules. If that's not possible, then if the Moderate NAT/Type 2: This NAT is more secure than Open NAT as it leaves only a few ports open. Split-tunneligt config on client has this iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE PostDown = iptables -D FORWARD -i wg0 -j ACCEPT; iptables -t nat -D POSTROUTING -o eth0 -j MASQUERADE 2. It's on by default and it seems to be working for you since you can access your services through your WAN IP on your local network. Brought to you by the scientists from r/ProtonMail. However, it does provide me with IPv6 addresses. I have tried setting up an IPsec site-to-site VPN in UniFi as well as OpenVPN, but neither seem to work at all. My goal is to connect 5 users to the office server, while they’re at home. NOTES & REQUIREMENTS: Applicable to the latest EdgeOS firmware on all Move the rule to the top of the firewall NAT rules. Is it connected behind another router or some device from your internet provider? What is the WAN interface IP of your UDM?(don’t share Hi All, Thought I'd post the FortiGate configs to work with some Unifi devices. It also has an active firewall in place to secure the network but it may also slow down your internet connection. On the USG not behind GCNAT: Settings > Networks > Create New Network > Site-to-Site VPN > Manual IPsec > Peer IP 0. Then you can control all the external nat on the pfsense. This site is Starlink, so it's behind CGNAT and is also dynamic Current Understanding: IPsec needs ESP protocol, and UDP ports 500 and 4500. I have The Unifi UDM Pro is configured with a Wireguard server that works as expected from other clients (devices behind this Mikrotik router, and from other locations). 1. Or an dedicated firewall/vpn. So far no luck with ipSec. This means that when the VPN client sends a request to the external IP, the router has to rewrite the destination to the internal server (". Ideally I'd like the GrooveGA to maintain a site-to-site VPN to the Unifi network, so I don't need to maintain direct VPN connections from the devices at the Mikrotik site. Options like STUN or TURN may be possible with your ISP. Anybody get this working on a UDM Pro? Disable NAT on UDM Pro . It is a point-to-point VPN, which means it does not have a client-server architecture, but peers, and does not rely on a PKI, unlike OpenVPN. After setting up a Unifi Cloud Key, switches, and access points behind a FortiGate, with vlan separation between the cloud key (controller used for management) and other Unifi devices, and with remote access to the Unifi system working I have a UDM Pro set up behind my ISP's own gateway router. Just to add that you don’t need to use double nat. Strict NAT/Type 3: This NAT is the strictest and the most secure of the three. 0 and can have multiple WAN IP addresses however without 1:1 NAT some of the devices are not running correctly. There is no need for the UDM to nat if you don’t want. Do I need to setup RADIUS server, then a VPN or just use "Create Basic VPN". As the description states, I cannot get my router (UDM-Pro) to receive my single static public IP from the Comcast business modem+router. If you use pfsense for any VPN then double nat will not really be viable. QuickConnect will just work with no changes to your network. 9. All Rights Reserved. 2. Question So to save a lot of time by ignoring the why, I have a straightforward question. Windows clients must be configured to enable MS-CHAP Even if you run Wireguard on the UDM, you still have to open the port, albeit in a different way. 1 (the Gateway IP) I have not messed with any Firewall settings, so maybe my problem is there. Then, generate a few things using Easy-RSA (info taken straight from tutorials on the OpenVPN community pages): First of all, configure the variables in the file "vars". Overall, I am Log into the USG that you have behind a NAT, do this using Putty. This is the official subreddit for Proton VPN, an open-source, publicly audited, unlimited, and free VPN service. 0/24. Nighthawk - 192. 1 USG Pro 4: 192. Hello guys, I have two ASAs: one has a static public IP on its outside interface, the other one is behind a DSL modem and thus has a private IP on its Outside interface. New Site 2: Proposed UDM as an all-in-one solution, probably with a couple of APs. Currently works as a dial-in VPN for roaming clients too. So I plugged it into the UDM-P behind the MikroTik (double NAT). OpenVPN can be any port but indeed 1194 is the default. On Windows clients, you must modify the registry. I can't find its NAT feature, due to limited online UDM documentation. I configured the UDM-pro’s built in VPN service as a L2TP with default radius server and no advanced options After installing the UDM Pro, with the Modem/Router connected to the WAN port, and moving the web server behind the UDM Pro, with the appropriate double port forwards I can access my web server via URL externally, however double nat loopback is failing and internal users cannot access my web server from with in the network. How is the NAT feature on the UDM? UDM Pro is a SOHO router, so I am concerned/nervous if enabling NAT on it is a good idea since NAT is processor/memory consuming. I upgraded from an edgerouter-4 where I had it setup behind a double NAT config pretty easily. com actually points to the public IP (so that requests work from the outside when not on the VPN). Address. I recently purchased and installed a Ubiquiti UDM-PRO and I can't seem to find the equivalent settings section to put in my NAT rules. The Apply NAT Policies feature or NAT over VPN is configured when both sides of a proposed site to site VPN configuration have identical, and hence overlapping, subnets. This is my first NAS and am nervous about exposing it to the internet except through a VPN. Both sites have a UDMP. My goal is 2) Overlay VPNs like Tailscale, Zerotier, Netbird and Twingate will also work with CGNAT or Double NAT. Whether you want to connect from a remote network to your own network, connect multiple sites together, or want to use a privacy Readers will learn how to configure a Site-to-Site VPN between two EdgeRouters, where one of the devices is located behind NAT. I believe your issue that your UDM is behind a double NAT. It has to make an outbound connection because it's behind the NAT. The only device seen behind it is the UDM. Hi I have a problem with double NAT VPN Site 1 : livebox with fixed IP x. I searched the forum before posting - and saw some similar queries - but they were either not in a double-NAT configuration - or the solution to their issue, didn't seem applicable to my scenario. I know the spec sheet of the UDM Pro says about 800mbps (VPN/IPSec), but it is not clear to me whether this is site-to-site (which I am not interested in) or what the client specs are for these 800. I can't figure out how to do this because I don't see the Delete button under Settings > Admins. 76 (Both Early Access) Using the inbuilt VPN client, I am trying to establish a OpenVPN connection with NordVPN to connect to a VLAN on my network. Dst. The FQDN setting makes it independent of IP. I've created two Super Administrator accounts in Unifi Controller and would like to delete one of them. 94. Ubiquiti recommends using OpenVPN but the vendor will not accept that. Scales easily. Is it possible to use the Linksys just for ExpressVPN and the UDM Pro (downstream I am looking for a workable solution to bring up a temporary Site to Site VPN connection between a remote site ( Dynamic ) and our datacenter. I’ll be moving to Unifi in the near future and will be buying the UDM Pro. I've set the bgw320 to ip passthrough and designated the mac address on the udm. The local NAT is skipped by exposing the UDM Pro as server, as it handles outside attacks elegantly, this is no issue. I could use suggestions for two things, and any advice. 1 address. Ben Here’s my topology: My Cable modem is connected to the WAN port on my NightHawk router ------> The nighthawk router has a LAN cable coming from it to my Ubiguiti WAN port to provide outside internet. After setting everything up and checking logs, it will not connect due to my side not being behind a NAT. How to setup a VPN server using WireGuard (with NAT and IPv6) 2019-01-27 13 minutes linux network sysadmin free-software WireGuard is a fast and modern VPN protocol. The purpose is to connect our hybrid AD doc to their DC for Is there is a way to import NFC data when you perform a user import via CSV? I am trying to setup vpn access from a windows 10 pc to a Unifi udmp running v7. The upstream router providing your UDM with an IP address would need to be configured for UPnP or have proper port forwarding configured to forward your L2TP/IPSec VPN port (s). I have a UDM-Pro behind a Comcast EMTA router that is not in bridge. However, if you just want to access your local network, while using your current Internet connection for everything else, you can create a split tunnel client. As I understand it I can’t use ExpressVPN on the UDM Pro. You can run Wireguard on a computer. Set the att box to 192. If you want to establish VPN connections to remote VPN servers, you do not have to configure any settings in the FRITZ!Box. Really it depends on your requirement. Has public IPv4 but that IPs is dynamic from ISP so using DynDNS. It only started working when the provider NAT was disabled and having a dynamic First, install OpenVPN on both the server (EC2 instance) and the client (Raspberry Pi behind the CGNAT), and also install Easy-RSA on the server only. My thought is port forwarding is the less secure way to do this, and I should set up VPN at home. ****If the L2TP/IPsec VPN server is behind a NAT device, in order to connect external clients through NAT correctly, you have to make some changes to the registry both on the server and client side to allow UDP packet encapsulation for L2TP and NAT-T support in IPsec. Or run VPN server on RT. you could set it up on a second router behind the UDM-P and use it as a Gateway. Also, just an A/V appliance connected to it (HD HomeRun) and nothing “dialing home,” so to speak. The ISP router gets the Public IP and my UDM Pro is assigned a LAN IP address from the ISP router. If your ISP uses CGNAT you aren't certain to have the needed ports in your range/block even if your ISP allows new incoming sessions so you might have to use just OpenVPN on an alternate port once you determine your range/block (which shouldn't change L2TP encounters issues when the UniFi gateway is behind NAT, even when forwarding the ports on the upstream router. 5. Assign/Forward public IPs to machines behind UDM Pro . I recently installed and configured a UDM-PRO at home, so now it's time to set up a site-to-vpn to my Microsoft Azure network. I will create Virtual Network and Gateway resources using Azure Bicep, but please skip ahead. All the VPN types can be used when the UniFi gateway is placed behind another router (double NAT). And if the client is not behind firewall/nat performance wil be unaffected since QuickConnect will facilitate direct connection. Description: masquerade for Captive DNS Outbound: Interface switch0 Translation: Use Masquerade I’d you failed to get open nat with upnp turned on then I’d wonder how your UDM itself is configured. Encr. com through Google DDNS; I used this video to set this up on the UDM-Pro. Theoretically, this should be possible by using a remote IP of 0. e. Question Hi, How to save costs of unused Elastic IPs (and How to run Lambda in a VPC with internet access and without NAT Gateway) Setting Up AWS VPN to access EC2 Instance in Private Subnet. The use of VPN may be the item that determines your nat strategy. How can I either: change the udmp to have a more secure vpn protocol (like ipsec) Hi all I have a Linksys WRT3200 router which I intend to use as a VPN router. I have setup many vpn's that the gateway had IPsec needs ESP protocol, and UDP ports 500 and 4500. I've seen quite a few guides on how to setup NAT rules on a USG 3 or Pro 4 using custom JSON files. However, I can’t connect to the openVPN server, over the internet; after some troubleshooting I found out it appears the ISP is double NAT the I have a Synology NAS RS1221+ connected to a Ubiquiti UDM-Pro Gateway. I want to put the UDM-Pro behind the SonicWalls and leave everything working with the SonicWall stuff. exe) and go to the following registry key: Because ER-R is located behind a modem performing NAT services, the source IP address of the VPN (10. Users with a Next-Gen gateway or UniFi Cloud Gateway running UniFi OS can access it from Network Settings > Recently upgraded to att fiber and having what I think are issues with double nat. Open the Registry Editor (regedit. I have a UDM (not pro) setup. Route-Based VPNs use Virtual Tunnel In UniFi network we have a couple of options when it comes to setting up or using VPN. 10 : 2000 in the example below) before NAT translation. You can also Remote or local authentication ID (when behind NAT) Route-Based or Policy-Based VPN. Is there a way to disable the WAN functionality of the UDMP, and just use it as a router on a stick. Previously, I was using a Ubiquiti ERPoe-5 and I had the following configured: Source NAT Rule. Not sure if Ubiquiti supports nat-t for VPN. commercial VPN service - large variations in pricing, reliability - note that routing private traffic requires a great deal of trust! externally hosted server - possibly the cheapest approach, but requires regular maintenance; NAT traversal. This will create a full tunnel VPN. Re: Access to OpenVPN server behind NAT Post by kuba__s » Fri Feb 19, 2016 7:03 am My problem is not to install and configure OpenVPN server on 'Router B', but to design whole solution to be able connect 'Client' with 'Router B', when both of them are behind NAT ( 'Router B' doesn't have public IP ). A constraint that we have is that the device is NAT behind an Inseego FW2000e cellular router so we can not effectivly use dyndns. a VPN Client, rather than Site-to-Site) it has little effect. Swiss-based, no-ads, and no-logs. r/selfhosted. The same on the computer. Reply reply More replies More replies VPN - 192. Has anyone else been able to successfully setup VPN pass-through on the UDM-Pro. The far side (behind NAT) routers will have the static, public IP of the near side configured but the authentication is based on FQDN instead of IP. I am changing over to Ubiquiti, already have two UDM-Pro SE's and several Ubiquiti 25gb/10gb switches to replace the Cisco stuff. In any case it can set up the vpn to the other UDM in another country, even though that UDM Pro is behind NAT of my router there. i pay for VPN (PIA) and was wondering if the UDM pro supports it. If your ISP uses CGNAT you aren't certain to have the needed ports in your range/block even if your ISP allows new incoming sessions so you might have to use just OpenVPN on an alternate port once you determine your range/block (which shouldn't change It works well for a couple of users. I've tried to use the WAN interface IPv6 address but it didn't work. 2) is translated to the 192. 25 UDM Pro WAN : 192. Since we don’t have a static external IP address, I had to use a DDNS service(no-ip). I don't believe the UDM series supports the implementation of said JSON configuration and I can't find anything in the This is the official subreddit for Proton VPN, an open-source, publicly audited, unlimited, and free VPN service. Does anyone have "real world" throughput figures for my use case (for the UDM Pro)? I have a symmetric 1 gbps internet connection. Can your VPN service support an endpoint behind a NAT masquerade? If so I have an idea, but it’s going to require a second router with better control. I can see the UDM SE starting the handshake with the SonicWall in the SW logs but it won't finish because the UDM SE hasn't got NAT-T turned on, at least as far as I can tell that is This is a place to discuss all of Ubiquiti's products, such as the EdgeRouter, UniFi, AirFiber, etc. User Authentication OK, so this is almost certainly a hairpin NAT issue. Sorry I should’ve been more specific. . Switching to a Policy-Based VPN is possible. It sounds like the DNS for xyz. Hello! I was trying to configure a remote user VPN on my UDM but I found out that my ISP has CG-NAT. Having a public on the Wan isn't really required as much these days, but it is preferred. x and my udm range to 192. WireGuard - a fast, modern, secure VPN Tunnel Members Online • ZealousidealEntry870. Site B has a GrooveA with the latest Router OS. Now because they are behind CGNAT I can't just host a VPN and remotely connect so I had the thought that I could setup my parents PI to make a wireguard connection to my home server as a hopping Site to Site VPN with double NAT on one side comments. I've found out that there were missing firewall ACLs for IPv6, I've added the L2TP ACL for wan v6 local but still didn't work. For that, you just need to change the AllowedIPs field to your network subnet: Hopefully I am just being stupid here. 13 Unifi Network 7. © 2025 Ubiquiti, Inc. The udm reports a On your phone, it can be easily added through the Wireguard app. I set up a vpn site-to-site with openvpn that works good. Network Setup:In this scenario, a VPN tunnel is created between a Ubiquiti Dream Machine Pro not behind a NAT needs to connect to a vendor who has Cisco, behind a NAT via IPSec, IKEv2. Hello all. A VPN tunnel cannot be established if both the destination network and the local network have the same subnets. Only one container per user so you dont have a license issue. It seems to be working only when i use static one to one NAT rules. ADMIN MOD Setup on UDM Pro behind cgnat? Is there a way for me to get WireGuard working on my UDM Pro using a vps as the public facing IP? Goal would be to Site 1: USG (and CK2+) is the main site. 4) SIMBA I am building a IPSec VPN tunnel between a Fortigate FW (1500D) and the UDM Pro router. The "wizard" in window 10 and 11 doesn't give you any of the actual options needed to correctly As the title states, I am attempting to configure a site-to-site VPN between a USG leveraging 5G ISP (CGNAT) & a UDM Pro with Static IPs. The TPLink was setup the same way, and the VPN worked fine. NAT type: Friendly. 3. However, it’s better and easier if the gateway has a public IP Address. For the credentials enter your ssh credentials from your cloud key. If you were to run Wireguard on a router behind the UDM, then you would forward the port to the router. This way the vpn router behind the NAT always initiates the VPN session. I've verified that it's setup properly, just like the other three, How to fix double NAT detected with Xbox and 2 routers? The following terms are used in the NAT process: Pre NAT Source The source IP address + port of the host on the LAN (192. It only started working when the provider NAT was disabled and having a dynamic but fixed IP. 25 LAN Trying to find the right process here, I've found several discussions and articles saying its possible to setup but haven't found any "how-to" or more detailed descriptions of setting it up on a UDM-P. 10. Sometimes the vpn stops working and the only way to restore the connection is to delete and reconfigure the connection until it decides to work. 204 with DMZ on 192. There’s a lan cable coming LAN port 1 on the router to a switch. Static Route (VPN): Destination Network: 192. I wanted to. However, if I was looking for a vpn solution at your size I'd go with, minimum, a server running docker with openvpn and define certs with different ports for the # of openvpn sessions you need. But the windows pc doesn't have a native L2TP option (only with L2TP/IPsec cert or L2TP/IPsec PSK). 0 on the UDM Pro and initiating the VPN from the USG (CGNAT) Side, pointing to the static IP of the UDM Pro. By default, VPN passthrough is enabled for the VPN My ISP does not give my router a public IP, instead it seems to put multiple sim cards into some private network behind a NAT It allows to run a VPN Server behind a NAT and has Nat Traversal features so that clients can connect to it from the outside. There are architectural reasons they want to do so, My question is, can we terminate AnyConnect VPN connections into an ASA that's behind NAT. any traffic coming in to 80 or 443 gets forwarded to I was trying to configure some port forwarding on my UDM SE and then realised I am behind a NAT!! I am on ViewQwest 10Gb plan with the Huawei ONU and I thought the ONU is in bridge mode. mydomain. These two routers are segmented. The UDM will not establish a VPN connection. Can I create a VPN with the UniFi controller and have it work? Thanks in advance Anyone running a UDM with NAT off (aka as a pure router) and behind another firewall? I am deeply invested in Unifi, i have UDM-Pro and other Unifi switches and APs. Post NAT Source The source IP address of In any case it can set up the vpn to the other UDM in another country, even though that UDM Pro is behind NAT of my router there. 1 (behind NAT) ISP modem/router Site A - WAN IP 203. Enter the IP address of the USG. Just installed UDM (not Pro) at my home and wanting to use Remote Desktop to a home PC when away. Site B has an external IP address that is translated via a 1-1 NAT (according to the ISP) to an internal, private WAN address. Trying to make a site-to-site VPN between two USG’s work, unfortunately the remote end is behind a double nat and it’s a couple hours away. Let me know if this isn't appropriate for the forum. There are only two clients at Site B. Or put RT in bridge mode to eilimimate double -nat Or put your edge device into bridge mode. A place to share, discuss, discover, assist A huge improvement over the default site to site VPN options. rebooting devices and interfaces usually does not work. The Ubiquiti Dream Machine Pro has a lot of functionality built-in, including IPsec Site-to-site VPN_(Virtual Private Network)_ support. This router is behind a NAT. After examining log files it's because they are receiving and sending on different IP addresses. 1:1 NAT would fix this issue, I've done it before with PFSense and Meraki. (ability to be a VPN client and ability for another device to handle NAT up the chain). Hairpin NAT means the router translates traffic destined to your WAN IP to the LAN IP you define in the port forwards. Otherwise, you will need to forward the There is no need for the UDM to nat if you don’t want. For the home NAT router which is connected to the ISP (Deutsche Telekom in my case) I will use a FRITZ!Box 7590. Then I can (hopefully remotely) configure the UDMP site-to-site VPN and take down the SonicWall one. Modify clients WG config in this way: [Peer] AllowedIPs = 192 # Track VPN connection sudo iptables -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT sudo iptables -A FORWARD -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT # Enable VPN traffic on the listening port: 51820 sudo iptables -A INPUT -p udp -m udp --dport 51820 -m conntrack --ctstate NEW -j ACCEPT # TCP Hi, Is this possible: Main head office has direct connection to WAN, however secondary UTM in another site is behind a NAT, so its effectively double NATed Solved: Hi all, I have a customer who would like to put an ASA (vpn_asa) behind another ASA (outside_asa) that attaches to the internet, and use the vpn_asa to offload VPN connections. I'm trying to configure a Wireless Router running OpenWRT, with a WireGuard Client configured to connect to a Wireguard Server running on my home network. It is super simple to setup to connect "YOUR SECRET KEY for UDM" (not the same as for Mikrotik) UniFi Gateway IP "WAN IP of UDM" If you want to also connect with VPN client to your UDM add a user for (Windows VPN clients enable MSCHAPv2 on Site A has a Unifi UDM Pro with a static WAN IP and a configured Wireguard VPN. Then I have the Dead Peer Detection set to "restart" on the far side only. Site A has an external WAN address, everything is working fine there. VPN Server: Enabled (checked) VPN Protocol: L2TP: Pre-shared Key "YOUR SECRET KEY for UDM" (not the same as for Mikrotik) UniFi Gateway IP "WAN IP of UDM" If you want to also connect with VPN client to your UDM add a user for (Windows VPN clients enable MSCHAPv2 on network adapter). Home NAT Router IPSec Site-to-Site VPN Tunnel Support. I setup several subdomains and used Reverse Proxy under - Win11 Pro behind NAT pointing to ISP modem public fixed IP - VPN type: L2TP/IPsec with pre-shared key - sign-in info: Username and Password Make sure you have the key entered and the proper auth method assigned on the vpn client connection. 113. You can build custom routes in the UI though, should be able to route traffic to specific hostmasks over the VPN using them. 168. x. We went from a bunch of IPSec S2S VPNs to Site Magic in about 10mins (literally just trashed the VPN settings at each site and then ticked the cloud keys and vlans in site magic and clicked configure ), and went from getting crappy 50mbit speeds to 500mbit+ on iPerf (must be wireguard). I want Site B, the Mikrotik, to join the Wireguard network. In Ubiquiti speak, you would open the port in the UDM’s WAN local rule. The use of VPN may be I have a UDM SE that is behind a CGNAT that I want to site-to-site with a SonicWall that has a public IP. Am I able to change NAT settings at all ? I mean want to set up rules to force some internal traffic over to an Internal VPN Server I have. 1 (public IP) UniFi Gateway Site B - Current setup - UDM PRO SE Unifi OS 3. Called I installed and configured a UDM and a UDM-PRO in diffirent site, both are behind nat. For example, an IPsec Site-to-Site VPN is set up between the below UniFi Gateways: UniFi Gateway Site A - WAN IP 192. correctly, point out that the setup does "Double NAT", which is true, but for this configuration (i. Choose either of the two following options to change the IPsec authentication IDs: I'm running v1. 1 Doubble NAT behind Comcast Business with Static IP . I understand that the UDMSE needs to make the connection. I decided to go with openVPN hosted in a VM on the server. I'm using ExpressVPN, and was hoping that I would just be able to connect that through the UDM Pro Site-to-Site VPN. 0 The VPN can only be initiated from the USG behind the CGNAT, the other USG will respond to the VPN session. We discuss Proton VPN blog posts, upcoming features, technical questions, user issues, and general online security issues. Src. X. Looking for someone with some ideas. You make those during setup. 0. The post Can't reach networks behind Wireguard VPN server. I have had success on other installations by using an OpenVPN connection behind the UDM, but I want to use the UDM for this network. The DSL modem has a Dynamic public IP (DHCP) on its WAN interface and is source NATTING everything to this address. 3) MR/VQ provides Static IPv4 add-on to work-around CGNAT limitation of no public IPv4 address. If you want to also connect with VPN client to your UDM add a user for (Windows VPN clients enable MSCHAPv2 on network adapter). qtyl eufziid znhb ocrsv edbqoyvz lsqya tmlul hpgqia mbdkx msxx