i am trying to recreate a network setup but do not have a networking background and would appreciate some help.
the current configuration is:
internet > router > Security gateway > server (acting as dhcp server)
they have a fixed public ip address range
internet is up and running but when i check the public ip address of the server it is not one of the ones within our range.
am i right in thinking that i need to set a fixed public ip address for the security gateway as my isp has said that i can not set i fixed public ip address for their router?
any help advice or further questions would be greatly appreciated