Cisco 7100 Series Especificaciones descargar pdf (Pagina 37)

Intranet VPN Business Scenario 3-7

Verifying the Tunnel Interface, Source, and Destination

Note When conﬁguring GRE, you must have only Cisco routers or access servers at both

ends of the tunnel connection.

Verifying the Tunnel Interface, Source, and Destination

To verify the conﬁguration:

• Enter the show interfaces tunnel 0 EXEC command to view the tunnel interface’s

status (both the interface and the interface’s line protocol should be “up”) and

conﬁgured IP addresses and encapsulation type.

hq-sanjose# show interfaces tunnel 0

Tunnel0 is up, line protocol is up

Hardware is Tunnel

Internet address is 172.17.3.3/24

MTU 1514 bytes, BW 180 Kbit, DLY 500000 usec,

reliablility 255/255, txload 1/255, rxload 1/255

Encapsulation TUNNEL, loopback not set

Keepalive set (10 sec)

Tunnel source 172.17.2.4, destination 172.17.2.5

Tunnel protocol/transport GRE/IP, key disabled, sequencing disabled

Checksumming of packets disabled, fast tunneling enabled

Last input never, output 00:10:44, output hang never

Last clearing of "show interface" counters never

hq-sanjose(config)# interface tunnel 0

hq-sanjose(config-if)# no shutdown

%LINK-3-UPDOWN: Interface Tunnel0, changed state

to up

Bring up the tunnel interface.

hq-sanjose(config-if)# exit

hq-sanjose(config)# ip route 10.1.4.0

255.255.255.0 tunnel 0

Exit back to global conﬁguration mode

and conﬁgure trafﬁc from the remote

ofﬁce’s network through the tunnel.

This example conﬁgures trafﬁc from

the remote ofﬁce’s Fast Ethernet

network (10.1.4.0 255.255.255.0)

through GRE tunnel 0.

1 This command changes the state of the tunnel interface from administratively down to up.

Step Command Purpose

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Cisco 7100 Series Especificaciones Pagina 37