Elasticsearch remote cluster authentication

Elasticsearch 7.8. Independent account authentication is configured between the two clusters,

xpack.security.enabled : true
xpack.security.transport . ssl.enabled : true
xpack.security.transport . ssl.verification_ mode: certificate
xpack.security.transport . ssl.keystore.path : certs/elastic-certificates.p12
xpack.security.transport . ssl.truststore.path : certs/elastic-certificates.p12

On kibana, the remote cluster status indicates that the remote cluster is "not connected"
The cluster kibana connects to is "connected". How to configure account authentication in cross cluster search.

I have solved the problem.