The packets sent to an IP address in a configured NAT address pool are discarded

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Q: The packets sent to an IP address in a configured NAT address pool are discarded. You can run the ip route-static command to configure a static route to the IP address. The default priority of a static route is 60, which is higher than that of the UNR. This prevents packets sent to an IP address in the address pool from being discarded.
The causes are as follows:
After a NAT address pool is configured on an interface, a 32-bit local user network route (UNR) is automatically generated, and its priority is 64. When a packet to be sent to an IP address in the address pool passes the router, it matches the 32-bit local UNR and is sent to the protocol stack. However, the router cannot forward the packet because it does not have the protocol stack of the IP address. The packet is discarded. Therefore, you need to configure a static route with the default priority higher than that of the UNR.

Other related questions:
Whether an address in the NAT address pool can be configured as a public IP address for NAT Server
Yes.

Whether addresses in the NAT address pool are contiguous addresses
No. The NAT address pool contains IP addresses within a range specified by the start address and end address. You can use the address exclusion function to eliminate certain special IP addresses within in this IP address range. Therefore, the addresses in the NAT address pool may not be contiguous. In addition, the start address and the end address can be the same. In such a situation, only one address exists in the NAT address pool.

Can the global address of the NAT server be an address in the NAT address pool
No, the global address of the NAT server cannot be an address in the NAT address pool.

Can the virtual IP address of a VRRP group be added to the NAT address pool
Yes. If the virtual IP address of the VRRP group is the only public IP address for the intranet, you can add the virtual IP address to the NAT address pool.

Whether AR NAT Server Global address is NAT Outbound address in the address pool?
Yes

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