Change of VPN peer IP address - Cisco 877

[danstaunton]

Hi,

I have a site to site tunnel with my customer. They have informed me that they have recently moved offices, and therefore need to update the configuration of our tunnel to reflect this change.

Am I correct in saying that I need to apply the following commands to update the tunnel?
Conf t
crypto isakmp policy 1
no crypto isakmp key 'mykeyhere' address 81.x.x.x
crypto isakmp key 'mykeyhere' address (New address here)
conf t
crypto map SDM_CMAP_1 1 ipsec-isakmp
no set peer 81.x.x.x
set peer (New Address Here)

Do I need to do anything else? I have posted my config below.

Thanks
crypto isakmp policy 1
encr 3des
authentication pre-share
group 2
crypto isakmp key 'mykeyhere' address 81.x.x.x
!
!
crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
!
crypto map SDM_CMAP_1 1 ipsec-isakmp
description Tunnel to81.x.x.x
set peer 81.x.x.x
set transform-set ESP-3DES-SHA
match address VPN_Customer
!