Cisco 7100 Series Especificaciones descargar pdf (Pagina 34)

Step 1—Configuring the Tunnel

Cisco 7100 Series VPN Configuration Guide

3-4

Table 3-1 Physical Elements

Step 1—Conﬁguring the Tunnel

Tunneling provides a way to encapsulate packets inside of a transport protocol. Tunneling

is implemented as a virtual interface to provide a simple interface for conﬁguration. The

tunnel interface is not tied to speciﬁc “passenger” or “transport” protocols, but rather, it is

an architecture that is designed to provide the services necessary to implement anystandard

point-to-point encapsulation scheme. Because tunnels are point-to-point links, you must

conﬁgure a separate tunnel for each link.

Tunneling has the following three primary components:

• Passenger protocol, which is the protocol you are encapsulating (AppleTalk, Banyan

VINES, Connectionless Network Service [CLNS], DECnet, IP, or Internetwork Packet

Exchange [IPX])

• Carrier protocol, such as the generic routing encapsulation (GRE) protocol

• Transport protocol, such as IP, which is the protocol used to carry the encapsulated

protocol

Figure 3-3 illustrates IP tunneling terminology and concepts.

Headquarters Network Remote Ofﬁce Network

Site

Hardware

WAN IP

Address

Ethernet IP

Address

Site

Hardware

WAN IP

Address

Ethernet IP

Address

hq-sanjose Serial interface 1/0:

172.17.2.4

255.255.255.0

Tunnel interface 0:

172.17.3.3

255.255.255.0

Fast Ethernet

Interface 0/0:

10.1.3.3

255.255.255.0

Fast Ethernet

Interface 0/1:

10.1.6.4

255.255.255.0

ro-rtp Serial interface 1/0:

172.17.2.5

255.255.255.0

Tunnel interface 1:

172.17.3.6

255.255.255.0

Fast Ethernet

Interface 0/0:

10.1.4.2

255.255.255.0

Corporate

server

– 10.1.3.6 PC A – 10.1.4.3

Web server – 10.1.6.5

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 111 112

Comentarios a estos manuales

Sin comentarios

Cisco 7100 Series Especificaciones Pagina 34

Comentarios a estos manuales

Relacionado con productos y manuales para Redes Cisco 7100 Series