[IAG] Dual external network lines, the internal network is disconnected after unplugging one line – NAT setting error
Problem Description
The device has two external network lines. After unplugging line 2, the internal network is disconnected. The direct connection and global exclusion cannot connect to the Internet.
Process——
- Check the configuration. There is no problem with the deployment configuration. Link fault detection shows that the link is also normal.
- Check that only WAN1 is selected for the NAT proxy interface of the device, and all are not selected.
240715c90e4b9a827c.png (9.36 KB) - After selecting all network ports, unplug the network cable to test whether the intranet users can access the Internet normally.
309145c90e50285b09.png (24.02 KB)
solution
When the device has multiple external network lines, the NAT proxy needs to specify all wan ports
Original Link
https://support.sangfor.com.cn/cases/list?product_id=22&type=1&category_id=6763&isOpen=true