Thanks for your answers.
I am reading the section pasted below in this document. I know there are 2 devices to set up the VPN. One is the VPN server (Juniper SSG5 in my case) and another one is a VPN client (a phone in my case).
In the example, is IP 10.10.5.44 the IP address of the VPN server/gateway (Juniper SSG5 in my case) or the IP of VPN client (a phone in my case)?
Thanks!
Requesting a Certificate Manually
When you request a certificate, the security device generates a key pair. The public
key becomes incorporated in the request itself and, eventually, in the digitally
signed local certificate you receive from the CA.
In the following example, the security administrator is making a certificate request
for Michael Zhang in the Development department at Juniper Networks in
Sunnyvale, California. The certificate is going to be used for a security device at IP
address 10.10.5.44. The administrator instructs the security device to send the
request through email to the security administrator at admin@juniper.net. The
security administrator then copies and pastes the request in the certificate request
text field at the CA’s certificate enrollment site. After the enrollment process is
complete, the CA usually sends the certificates through email back to the security
administrator.