openwrt / openwrt/packages

SoftetherVPN: Unable to get connection while using Azure VPN

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Description

Maintainer: @fededim @neheb
Environment:
Server Side

  • NanoPi R4s (OpenWrt SNAPSHOT r23018-3b76f6eee4)
  • Xiaomi CR6609 (OpenWrt SNAPSHOT r23859-28bd578178)
  • Ubuntu 22.04

Client Side

  • Windows 10 22H2 (SoftetherVPN Adapter 4.25.0.9658, SoftetherVPN VPN Client Build 9787)

Description:
Unable to get connection while using Azure VPN, which does not need Port Forwarding and Public IP Address. I tried to use Static IP Address but failed to connect, too.

What did I set:
Basically, normal setup for SoftetherVPN Server when comes to the Local Bridge Setting Part, I tried to use Bridge with Physical Existing Network Adapter and Bridge with New Tap Device, bridge it with br-lan in OpenWrt, but no luck both way unable to connect. With the same method, I set up in Ubuntu 22.04 it works, successfully getting IP Address from DHCP.

For reference, the Wireshark log is provided in comments.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No source file or test is identified. Start by reproducing the Azure VPN setup on the listed OpenWrt and Ubuntu environments, then review the Wireshark log in the comments and compare the bridge configurations. Done means the OpenWrt setup connects successfully and receives an IP address from DHCP.

Written by the indexing model from the issue text.

Assessment

Tech stack
azure, ubuntu
Domain
networking
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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