Hello Joerg, the "trick" is to configure IPv6 as well and than it is possible to change the IPv4 on members with only one ETH. Regards, Joerg
Hi, one question: with the two or more eth interfaces eqls this task was never a prob for me BUT what about a 6110 where you have only one prod interface and want to change the whole ip scheme, let´s say from 192.168.1.1 for group and 192.168.1.2 for eth0 to 10.10.10.1 for group and 10.10.10.2 for eth0? This is confusing because you cannot change eth0 because it tells you the group ip doesnt match to that subnet and vice versa. i am also familiar with cli but these commands where also not successful. Please give advice. Best regards Joerg 
Change whole IP scheme with 611x series