COnfiguring 4 ports in RHEL

Hi,

anybody experience configuring 4 different ports (em01, em02, f7p1 and f7p2) all have 4 individual IP addresses.
During connection testing, we were able to ping all IP Addresses when all the ports are connected. But when we remove em02, f7p1 and f7p2 individually, the IP assigned them can still be ping. it was only when we remove em01 that we lost all ping connection to all the IP Addressess. It seems that all IP resides in a single port. we have checked the ifcfg file and we have verified that each of the respective ports have individual IP Assignment.

We have configured the IP using GUI. All ports are set to connect automatically. each ports were edited individualy. Hope to find a solution to this as well.
thank you