SEP auto offline updates

Hi Guys,

Neede help regarding SEP virus definitions and policy update.

Here's the scenario:

• Main office has SEPM SBE & SEP antivirus and get direct updates from Symantec.
• On local sites with has minimum 10 X computers but only 1 X PC (PCnet) has internet connection.
• PCnet has connection on the main office and received virus and policy updates.
• Other  has no internet connection and not been managed by SEPM
• Please see attachment file for reference

Here's the concern.

• we need to update other pc that has no internet connection
• can we used PCnet as a repository of virus and policy updates
• can PCnet automaticlly deploy virus and policy updates from main office to other PC that has no internet connection

Hope for your swift reply.

thanks.