Virtual Private Network (VPN) is not a completely safe, secure and guaranteed technology. However, it also has some glitches or problems. In fact, VPNs are not perfect and have some limitations. In a VPN environment like IPsec, it is very problematic to find the MTU and fragmentation issues and for this reason, the VPN faces performance and operation issues. Say no to plagiarism. Get a tailor-made essay on “Why Violent Video Games Should Not Be Banned”? Get an original essay This type of environment the MTU overtook and subsequently fragmented [5]. VPNs provide secure interconnectivity between two endpoints over the Internet. To provide this goal, VPN creates an IP tunnel virtually from one endpoint to another and provides additional and additional encryption mechanisms to completely secure the logical channel. This permanent tunnel takes up a lot of resources and is considered wasteful because it uses a large amount of bandwidth during transmission but less data. This is why the VPN network becomes slow. And the latency problem is very common in VPNs because the end-to-end delay has no negative impact on the VPN [6]. Sometimes VPN client connection is rejected due to routing and Remote Access Service is not working in Windows Services. This is a very common problem. Sometimes a DNS problem occurs because the server's FQDN cannot be resolved by the client's server name in IP address resolver. Although the VPN server is successfully connected to the client, the remote user cannot access the network beyond the VPN server. Another example is tunnel creation. everything seems fine, but we cannot establish a connection between two endpoints because the routers are trying to perform the packet filtering tasks and protect the IP tunnel traffic. There is also another possibility: is the proxy server between the client and the server [7]. Keep in mind: this is just an example. Get a personalized article from our expert writers now. Get a Personalized Trial VPN Replacement Technologies (Alternatives): MP -eBGP Technology: This is known as Autonomous System Border Routers (ASBR) approach and uses IPv4 routing. In this technology, ASBRs apply Multi-Protocol – Outside Border Gateway (MP-eBGP) to exchange routes between ASs (autonomous systems). This significantly reduces per-VPN configurations over ASBR. The MP-eBGP protocol session allows the two directly connected interfaces to transfer level packets.