COMPUTER NETWORKING

WIRELESS NETWORKS AND MOBILE IP

INTRODUCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
____ allows the encapsulation of packets of one protocol suite into the payload portion of a packet of another protocol suite
A
Minimal encapsulation
B
Generic routing encapsulation
C
IP-in-IP encapsulation
D
encapsulation and optimization
Explanation: 

Detailed explanation-1: -Generic Routing Encapsulation (GRE) is a protocol that encapsulates packets in order to route other protocols over IP networks. GRE is defined by RFC 2784. GRE was developed as a tunneling tool meant to carry any OSI Layer 3 protocol over an IP network.

Detailed explanation-2: -Generic routing encapsulation (GRE) is a communication protocol used to establish a direct, point-to-point connection between network nodes.

Detailed explanation-3: -Multicast traffic forwarding – GRE tunnels can be used to forward multicast traffic, whereas a VPN cannot. Because of this, multicast traffic such as advertisements sent by routing protocols can be easily transferred between remote sites when using a GRE tunnel.

There is 1 question to complete.