Create a route named 'allow-udp-636' with the next hop set to the VM instance hosting the LDAP server.

Apply a network tag 'allow-udp-636' to the VM running the LDAP server.

1. Assign a custom network tag to the VM hosting the LDAP server. 2. Establish a firewall rule permitting ingress traffic on UDP port 636 for the tagged VM.

1. Assign a custom network tag to the VM hosting the LDAP server. 2. Establish a firewall rule permitting egress traffic on UDP port 636 for the tagged VM.