Ccna routing and Switching Complete Study Guide

tunnel mode gre ?

  ip          over IP

  ipv6        over IPv6

  multipoint  over IP (multipoint)

 

Corp(config-if)#

tunnel mode gre ip

Now that we’ve created the tunnel interface, the type, and the transport protocol, we 

must configure our IP addresses for use inside of the tunnel. Of course, you need to use 

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GRE Tunnels 

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your actual physical interface IP for the tunnel to send traffic across the Internet, but you 

also need to configure the tunnel source and tunnel destination addresses.

Corp(config-if)#

ip address 192.168.10.1 255.255.255.0

Corp(config-if)#

tunnel source 63.1.1.1

Corp(config-if)#

tunnel destination 63.1.1.2

 

Corp#

sho run interface tunnel 0

Building configuration...

 

Current configuration : 117 bytes

!

interface Tunnel0

 ip address 192.168.10.1 255.255.255.0

 tunnel source 63.1.1.1

 tunnel destination 63.1.1.2

end

Now let’s configure the other end of the serial link and watch the tunnel pop up!

SF(config)#

int s0/0/0

SF(config-if)#