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[IAG] Dual bridge deployment, one of the bridge IPs cannot be seen by online users

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Problem Description

IAG dual bridge, two bridges carry different network data, one bridge has data passing, but no online users

Process——

  1. Confirm that the bridge data has dozens of MB of traffic back and forth, and users under the bridge can also access the Internet
  2. The interface captures the data of the abnormal bridge and finds that it passes through the device in both directions.
  3. Enter the device [Home] – [Real-time Status] – [Traffic Management] – [Connection Monitoring] and filter the offline IP addresses to find that the connection direction is all WAN-LAN data.

    217015b66717a506c4.png (32.16 KB)
  4. Check [User Authentication and Management] – [Advanced Authentication Options] – [Authentication Options] and find that the connection in the WAN->LAN direction is not authenticated.
  5. Communicate and change the wiring order of the abnormal bridge, and all user IPs will be online

Root cause

The line of a bridge is connected in reverse, and the connection in the WAN->LAN direction is not authenticated.

solution

Just adjust the wiring direction of the abnormal bridge

Original Link

https://support.sangfor.com.cn/cases/list?product_id=22&type=1&category_id=6240&isOpen=true