SEP Client deployment through Auto-upgrade feature

Hi,

We are planning to upgrade the SEP clients from 11.0.6 to 12.1.3 through auto upgrade feature provided by SEPM.

SEPM and GUP servers are already upgraded to SEP 12.1.3.

First we are planning to deploy the SEP client to remote offices.

Which port is used by SEP client to send the package/excutable on the computer for installation.

Regards

KK