Referring to following IP information, I would like to know whether Google is established a connection from 80 port (foreign address) to port 4797 (local address) or not. I get no idea on what google is doing using this port, but ZA firewall does not block it and no alert at all.

Does anyone have any suggestions?

Thanks in advance for any suggestions :>

Local Address
218.x.x.x:4797, my ISP's DHCP server IP
Foreign Address, which is google