OpenVPN Server on R7000 Router Being Blocked by Comcast

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mache
DD-WRT User


Joined: 11 Apr 2010
Posts: 311
Location: San Francisco Bay Area

PostPosted: Mon May 09, 2022 2:09    Post subject: OpenVPN Server on R7000 Router Being Blocked by Comcast Reply with quote
I live in the San Francisco Bay Area and Comcast is my ISP. I used to be able run an OpenVPN server on my home R7000 router but in the last few months it just stopped working and I cannot get into the OpenVPN server from the Internet. I had been running DD-WRT v3.0-r41811 std (12/28/19) but upgraded to DD-WRT v3.0-r46885 std (06/05/21) and still no luck. I have the same results with both my MacBook Pro and my Android phone. The local recreation district that I volunteer at shows this type of OpenVPN server blocking on the R7000 router that I installed there as well. Things work just fine for r7000 routers I have configured exactly the same way that are installed in New Jersey, Baltimore, Seattle, and Washington DC.

I use my home OpenVPN server for troubleshooting for family and friends and have tried a range of udp and tcp ports with no luck. Anyone else having this problem with Comcast? If so, any ideas how to fix it?
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kernel-panic69
DD-WRT Guru


Joined: 08 May 2018
Posts: 14125
Location: Texas, USA

PostPosted: Mon May 09, 2022 2:43    Post subject: Reply with quote
With all of the changes to OpenVPN and otherwise, you might wish to upgrade to the current release.

Sticky: OpenVPN guides and documentation

https://download1.dd-wrt.com/dd-wrtv2/downloads/betas/2022/05-06-2022-r48810/netgear-r7000/

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egc
DD-WRT Guru


Joined: 18 Mar 2014
Posts: 12837
Location: Netherlands

PostPosted: Mon May 09, 2022 6:04    Post subject: Reply with quote
Maybe they switched to CGNAT in your area so that you now no longer have a Public IP address?

https://en.wikipedia.org/wiki/Carrier-grade_NAT

_________________
Routers:Netgear R7000, R6400v1, R6400v2, EA6900 (XvortexCFE), E2000, E1200v1, WRT54GS v1.
Install guide R6400v2, R6700v3,XR300:https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316399
Install guide R7800/XR500: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=320614
Forum Guide Lines (important read):https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324087
mache
DD-WRT User


Joined: 11 Apr 2010
Posts: 311
Location: San Francisco Bay Area

PostPosted: Mon May 09, 2022 15:55    Post subject: Reply with quote
If that is true, I may have to do this and have the client run on DD-WRT.

https://github.com/smbm/wireguard-cgnat-bypass
egc
DD-WRT Guru


Joined: 18 Mar 2014
Posts: 12837
Location: Netherlands

PostPosted: Mon May 09, 2022 16:16    Post subject: Reply with quote
There are also commercial VPN providers which let you port forward via the VPN.

But in essence it is the same, you let a VPN *client* (WireGuard or OpenVPN) make contact to an outside server

I am running a VPS in the cloud (Oracle Cloud) which is essentially free and can actually do such a thing, the DDWRT client and the VPS server are setup for a site-to-site connection, instructions are in the guides how to do that Smile (also links to setup a VPS in the Cloud)


But first you have to diagnose the problem

_________________
Routers:Netgear R7000, R6400v1, R6400v2, EA6900 (XvortexCFE), E2000, E1200v1, WRT54GS v1.
Install guide R6400v2, R6700v3,XR300:https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316399
Install guide R7800/XR500: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=320614
Forum Guide Lines (important read):https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324087
mache
DD-WRT User


Joined: 11 Apr 2010
Posts: 311
Location: San Francisco Bay Area

PostPosted: Mon May 09, 2022 18:19    Post subject: Reply with quote
Can you point me to the link that gives the HowTo for DD-WRT client / VPS server site-to-site connection?
egc
DD-WRT Guru


Joined: 18 Mar 2014
Posts: 12837
Location: Netherlands

PostPosted: Mon May 09, 2022 18:37    Post subject: Reply with quote
For OpenVPN:
https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=327398

For Wireguard:
https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=327397

Both are stickies in the Advanced Networking forum.

You need the Server setup guide

_________________
Routers:Netgear R7000, R6400v1, R6400v2, EA6900 (XvortexCFE), E2000, E1200v1, WRT54GS v1.
Install guide R6400v2, R6700v3,XR300:https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316399
Install guide R7800/XR500: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=320614
Forum Guide Lines (important read):https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324087
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