Overlapping Networks

Overlapping networks are when two or more private networks with the same addressing schemes terminate on one phy-interface. The problem this creates can easily be solved by using VLAN tagging. For example, two 10.x.x.x networks terminating on one Oracle® Enterprise Session Border Controller network interface will obviously not work. The Oracle® Enterprise Session Border Controller includes the IP Address, Subnet Mask, and 802.1q VLAN tag in its Network Interface determination. This allows Oracle® Enterprise Session Border Controller to directly interface to multiple VPNs with overlapping address space.