1) Use the rtminst to change the IP address of the AMD.
There will be a restart of the rtm and you will have a hole of one intervalle in the data.
2) Change the IP address in the RUM console configuration.
3) In the RUML console, verifiy the datasource of all the CAS and ADS have the good IP adress after the change.
4) If there is an APPMON integration, change the AMD IP adresse in the apporpriate System Profil.