Connecting the wired and wireless networks particularly the Mobile ad hoc Network is integrated with Internet. Different mechanisms have been proposed to integrate MANETs and the Internet. These mechanisms are differing based on gateway discovery mechanism, and ADHOC routing protocol. When MANET is connected to the Internet, it is important for the mobile nodes to detect an available gateway providing an access to the Internet. The objective of this paper is a survey on the Mobile Ad-hoc

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... (MANET) routing protocols used in gateways. The key protocols AODV and DSDV has been analyzed and concluded that AODV provides better usage than DSDV.