-If you enable BGP on the VPN gateway, the gateway learns *On-premises 1* routes dynamically over BGP. For more information, see [How to configure BGP for Azure VPN Gateway](../vpn-gateway/bgp-howto.md). If you don’t enable BGP on the VPN gateway, the gateway learns *On-premises 1* routes that are defined in the local network gateway of *On-premises 1*. For more information, see [Create a local network gateway](../vpn-gateway/tutorial-site-to-site-portal.md#LocalNetworkGateway). Whether you enable BGP on the VPN gateway or not, the gateway advertises the routes it learns to the Route Server if route exchange is enabled. For more information, see [Configure route exchange](quickstart-configure-route-server-portal.md#configure-route-exchange).
0 commit comments