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SD-WAN Hub Stops Working When Adding WAN IP Alias

SD-WAN Hub Stops Working When Adding WAN IP Alias

SD-WAN Hub Stops Working When Adding WAN IP Alias
SD-WAN Hub Stops Working When Adding WAN IP Alias
3 weeks ago
Tags: #Firmware Update #Controller
Model: Omada Software Controller (Linux)   ER605 (TL-R605)  
Hardware Version: V2
Firmware Version: 2.3.0

Hi TP Link Omada Team,

 

I’m experiencing an issue with TP-Link Omada SD-WAN. I have a network setup with SD-WAN Hub and Branches. Everything works fine until I add a WAN IP alias on the Hub router. After adding the alias, the SD-WAN Hub stops communicating with the branches, and tunnels fail to establish.

 

From my observations:

  • SD-WAN traffic seems to rely on the primary WAN IP.

  • When the alias is added, traffic may originate from the alias instead of the primary WAN IP, causing the hub to reject connections.

  • Static routes and NAT rules may also conflict when using WAN aliases.

 

What I’ve tried:

  • Ensuring the SD-WAN service uses the primary WAN interface.

  • Checking NAT rules and firewall settings.

  • Updating to the latest firmware.

Result: SD-WAN only works if I remove the WAN IP alias.

 

Question to the community:
Is there a supported way to use a WAN IP alias on the Hub router without breaking SD-WAN? Or is this a known limitation? Any guidance or recommended workarounds would be greatly appreciated.

 

Thanks in advance!

Omada & VIGI | Using at 4 Locations | Controller: V6.0.0.23 (Linux) | GW: ER7206 | SW: SG2428P & SG2210P | APs: 2 × EAP610 | WAN: Jio&Airtel | NVR2016H.
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Re:SD-WAN Hub Stops Working When Adding WAN IP Alias
2 weeks ago - last edited 2 weeks ago

Hi  @Babun-Sikder 

 

Thanks for posting here.

Please confirm:

Is this situation only present in the latest trial firmware v6.0.0.19, or have you also encountered it in previous stable versions?

Are the non-hub gateways using public IP address?

What's the hardware version of the ER7206 you are using? how many? and are they all the same?

Wish you a happy life and smooth network usage!  >Get the Latest Omada SDN Controller Releases Here< >Experience the Latest Omada EAP Firmware<
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Re:SD-WAN Hub Stops Working When Adding WAN IP Alias
2 weeks ago

 Hi  @Vincent-TP ,

 

Thanks for your reply. Please find my details below:

 

  • I only started using SD-WAN after upgrading to the trial firmware v6.0.0.19, so I cannot confirm if the issue also exists on previous stable versions.

  • The hub is an ER605 v2 with a public IP.

  • The non-hub gateways are:

    • 2 × ER605 v2 (both with non-public IPs)

    • 1 × ER7206 v2 (with non-public IP)

 

After installing v6.0.0.19, I obtained a public IP for the hub and then configured SD-WAN. That’s when I noticed the issue after adding a WAN IP alias.

 

Please advise if further logs or configuration details are needed.

Omada & VIGI | Using at 4 Locations | Controller: V6.0.0.23 (Linux) | GW: ER7206 | SW: SG2428P & SG2210P | APs: 2 × EAP610 | WAN: Jio&Airtel | NVR2016H.
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#3
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Re:SD-WAN Hub Stops Working When Adding WAN IP Alias
Friday

  @Babun-Sikder 

 

Thank you so much for taking the time to post the issue on the TP-Link community!
To better assist you, I've created a support ticket via your registered email address and escalated it to our support engineer to look into the issue. The ticket ID is TKID250959910. Please check your email box and ensure the support email is well received. Thanks!
Once the issue is addressed or resolved, please update this topic thread with your solution to help others who may encounter the same problem as you did.
Many thanks for your excellent cooperation and patience!

Wish you a happy life and smooth network usage!  >Get the Latest Omada SDN Controller Releases Here< >Experience the Latest Omada EAP Firmware<
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