infinite
:
The tunnel does not update the MTU, and its value remains permanent
Setting up a GRE tunnel
Procedure
1. Enter
interface tunnel
, followed by a number identifying the tunnel, to create
the new Tunnel interface.
If you are changing the parameters of an existing tunnel, enter
interface
tunnel
, followed by a number identifying the tunnel, to enter the Tunnel context.
For example:
Gxxx-001(super)# interface tunnel 2
Gxxx-001(super-if:Tunnel 2)#
2. In the Tunnel interface context, enter
tunnel source
, followed by the public IP
address of the local tunnel endpoint, to set the source address of the tunnel.
For example:
Gxxx-001(super-if:Tunnel 2)# tunnel source 70.70.70.2
Done!
Gxxx-001(super-if:Tunnel 2)#
3. In the Tunnel interface context, enter
tunnel destination
, followed by the IP
address of the remote tunnel endpoint, to set the destination address of the
tunnel.
For example:
Gxxx-001(super-if:Tunnel 2)# tunnel destination 20.0.1.1
Done!
Gxxx-001(super-if:Tunnel 2)#
Note:
The Branch Gateway does not check whether the configured tunnel source IP
address is an existing IP address registered with the Branch Gateway router.
4. In most cases, it is recommended to configure keepalive in the tunnel so that the
tunnel’s source interface can determine and inform the host if the tunnel is down.
For more information on keepalive, see
on page 438.
To configure keepalive for a Tunnel interface, enter
keepalive
in the Tunnel
interface context, followed by the length (in seconds) of the interval at which the
source interface sends keepalive packets, and the number of retries necessary in
order to declare the tunnel down.
The router
440 Administering Avaya G430 Branch Gateway
October 2013
Summary of Contents for G430
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Page 556: ...IPSec VPN 556 Administering Avaya G430 Branch Gateway October 2013 Comments infodev avaya com ...