Novel tools and techniques are provided for implementing dynamic border gateway protocol (“BGP”) host route generation based on domain name system (“DNS”) resolution. In various embodiments, a computing system may receive, from a user device via a first network, a request to establish a communications link with an external device via a second network that is separate from the first network, based on a first uniform resource identifier (“URI”) indicative of a network location of the external device. The computing system may query a DNS resolver for an Internet Protocol (“IP”) address corresponding to a valid current IP address, based on the first URI, and may advertise the IP address and/or a route based on the IP address. A communications link may be established between the user device and the external device based on the IP address and/or the route.