Static Route Configured for Interworking Between the Public Network and Private Network Not Taking Effect. The fault may be caused by incorrect configurations, that is, the parameter public is not configured. Correct configurations are as follows:

ip route-static vpn-instance isp 202.56.4.165 255.255.255.0 nexthop-address public

To make the configured static route take effect, you need to configure the parameter public.

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thanks for share

good for share

useful document, thanks