interface tunnel
Syntax
interface tunnel <TUNNEL-NUMBER> mode {gre ipv4 | ip 6in4}
interface tunnel <EXISTING-TUNNEL-NUMBER>
no interface tunnel <EXISTING-TUNNEL-NUMBER>
Description
Creates an IP tunnel and switches to the configuration context for the tunnel.
If the specified tunnel exists, this command switches to the context for the tunnel.
The
no
form of this command deletes an existing IP tunnel.
Command context
config
Parameters
mode {gre ipv4 | ip 6in4}
- Creates an IP tunnel. Choose one of the following options:
gre ipv4
: Creates a GRE tunnel.ip 6in4
: Creates a IPv6 in IPv4 tunnel.
<TUNNEL-NUMBER>
Specifies the number for a new tunnel. Range: 1 to 127. Numbering is shared between all tunnels, so the same tunnel number cannot be used for an IPv6 in IPv4 tunnel and a GRE tunnel.
<EXISTING-TUNNEL-NUMBER>
Specifies the number for an existing IP tunnel. Range: 1 to 127.
Command context
config-gre-if
config-ip-if
Examples
Defines a new GRE tunnel with number 27.
switch(config)# interface tunnel 33 mode gre ipv4 switch(config-gre-if)#
Switches to the
config-gre-if
context for existing tunnel
33.
switch(config)# interface tunnel 33 switch(config-gre-if)#
Deletes GRE tunnel 33.
switch(config)# no interface tunnel 33
Defines a new IPv6 in IPv4 tunnel with number 27.
switch(config)# interface tunnel 27 mode ip 6in4 switch(config-ip-if)#
Switches to the
config-ip-if
context for existing tunnel
27.
switch(config)# interface tunnel 27 switch(config-ip-if)#
DeletesIPv6 in IPv4 tunnel 27.
switch(config)# no interface tunnel 27