Technical Tip: WAN link status failed when setup NO NAT on Service NAT of specific WAN

[tonylin1]

Description
This article descibes how to make WAN link status working when NO NAT is setup on specific WAN.

Solution
1) When WAN(example for WAN5)is using routing mode and NO NAT have been setup in Service -> NAT.

2) After Setup NO NAT, the link status of WAN will be down.

3) Set up a specific SRC IP to do NAT for WAN link health check:

- IP address: 223.255.255.<WAN Index>
- WAN5 => 223.255.255.5

4) After that, WAN status will become normal.