This is driving organizations to set up network architectures that do not depend on bringing all traffic back to headquarters. However, now that most companies have moved their applications and data to the cloud and have large mobile workforces, it no longer makes sense for users to have to go through an in-house data center to get to the cloud when they can instead go to the cloud directly.Ĭonsequently, companies need to set up network topology with access to the cloud or data center applications. This approach works when a company has an in-house data center, highly sensitive applications or minimal bandwidth requirements. Why Site-to-Site VPNs Are No Longer EnoughĬompanies have traditionally used site-to-site VPNs to connect their corporate network and remote branch offices in a hub-and-spoke topology. This connection could use IPsec, but it is also common to use an SSL VPN to set up a connection between a user’s endpoint and a VPN gateway. A remote access VPN is a temporary connection between users and headquarters, typically used for access to data center applications.This is typically set up as an IPsec network connection between networking equipment. A site-to-site VPN is a permanent connection designed to function as an encrypted link between offices (i.e., “sites”). Site-to-site VPNs and remote access VPNs may sound similar, but they serve entirely different purposes. With a site-to-site VPN, a company can securely connect its corporate network with its remote offices to communicate and share resources with them as a single network. Site-to-site VPNs are frequently used by companies with multiple offices in different geographic locations that need to access and use the corporate network on an ongoing basis. Many organizations use site-to-site VPNs to leverage an internet connection for private traffic as an alternative to using private MPLS circuits. A site-to-site virtual private network (VPN) is a connection between two or more networks, such as a corporate network and a branch office network.
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