A Gateway Identity certificate must be installed on the gateway whenever mutual-authentication has been requested using Communication Manager's change media-gateway SAT command.
The certificate must be installed by an administrator
The certificate must be in PKCS #12 format.
The certificate must contain at least the Identity certificate, and if encoded in PEM format, may have an embedded trust chain as well.
When trust chains are embedded, the chain elements must be ordered from low-to-high trust,and the Identity certificate must be the first element in the file.
This feature supports three applications in which an identity certificate may be used, namely h248reg, sla, and syslog.
h248reg designates that the certificate will be used for H.248 link establishment with CM.
sla designates that the certificate will be used for link establishment to an SLA Monitor server for diagnostic purpose.
syslog designates that the certificate will be used for link establishment to a remote syslog server.
web designates that the certificate will be used for link establishment to a remote HTTPS server.
The copy mechanism can be either SCP or HTTPS, that is secure copy for download from a remote host site or USB for a download from USB memory drive. The user will be prompted for a login/password on the remote host system when scp is used to install a certificate.